STATISTICS & BUSINESS PROBLEMS  AFTERSCHO☺OL   –  DEVELOPING CHANGE MAKERS  CENTRE FOR SOCIAL ENTREPRENEURSHIP  PGPSE PROGRAMME –  World’ Most Comprehensive programme in social entrepreneurship & spiritual entrepreneurship OPEN FOR ALL FREE FOR ALL
STATISTICS & BUSINESS PROBLEMS Dr. T.K. Jain. AFTERSCHO☺OL Centre for social entrepreneurship Bikaner  M: 9414430763 [email_address] www.afterschool.tk ,  www.afterschoool.tk
Find the binomial distribution if the mean is 48 standard deviation is 4.
P(A) =1/3, P(B) = ½, P(A-B) = 1/5, what is the probability that only B will happen?  P(A) = 1/3 (WHICH INCLUDES A+B ALSO).  P(A-B) = 1/5 (ONLY A – BECAUSE HERE B IS EXCLUDED) P(A &B) (Together) = 1/3-1/5 = 2/15 P(ONLY B) = ½ - 2/15 = 11/30 ans.
What is the probability that 4 children selected at random would have different birthdays? For the first boy there are 365 choices, for second, there are 364 choices, for third there are 363 choices and for 4 th  there are 362 choices. Thus the probability is  (365*364*363*362) / (365^4) = .983644 answer
There are 3 boxes with following details:  Box 1. (5 red,7 white, 6 blue) box 2: (4red,8 white,6 blue), box III : (3 red,4 white,2 blue), if one ball is drawn at random from each of these, what is the probability that we have 3 balls of same colour?
Solution.  Let us assume that we get Red from each:  5/18*4/18* 3/9 = 60/2916 For white :  7/18*8/18*4/9 =  224 /2916 For blue:  6/18*6/18*2/9 = 72/2916 = 356/2916 : = .122 ans.
What is the probability that a leap year selected at random will have 53 Saturdays?  We have 52 week plus one extra day in a normal year. This extra day can be any one from Mon. to Sun. In leap year, we have 2 extra days thus we can have these 2 extra days on any of MON+Tue or any combination of 2 days.  Thus we have 2/7 probability that the leap year will have 53 Saturday. Ans.
A pocket of 10 components include 3 defectives. If 4 components are selected from the pocket at random, what is the expected value of the number of defectives?  1.199 .099 .6 .5 0 .033 .3 .5 .167 7c1*3c3/10c4 7c2*3c2/10c4 7c3*3c1/10c4 7c4/10c4 3 2 1 0
30% failed in Acct. 40% failed in Eco and 50% failed in at least one of these papers. If we randomly pick up a person, who is failed in Eco,what is the probability that he has passed Acct?  Let us find the % for those who have failed in both the papers.  30+40 – X = 50 X = 20 thus there is 50% probability that he has passed Accts.
A problem was given to Mayank, Goti and Nidhi (pgpse students), the probability they will solve is 1/3, 1/5 and ½, what is the probability that the problem will be solved?  Let us assume that Mayank doesn’t solve it: 2/3, Goti doesn’t solve it  4/5 and Nidhi also doesn’t solve it ½. All 3 don’t solve it :  2/3*4/5*1/2 = 8/30. thus problem will be solved : 22/30 or 11/15 answer.
If NC2 = NC5, what is N ? N = 2+5 = 7 Thus N = 7 ans.
How many numbers of 5 digits can be formed with 0,1,2,3,4,6,8?  For the first digit we have 6 options, for 2 nd  digit we have 6 options (the digit used earlier will not be used), for 3 rd  digit we have 5 options, and for 4 th  digit we have 4 options and for last 5 th  digit we have 3 options). Multiply all these to get the answer:  =6*6*5*4*3* =2160 answer.  If repetition is allowed:  6*7*7*7*7 =14406 ans.
There are 2 boxes. The first contains 3 red and 5 white balls. The 2 nd  contains 4 red and 6 white ball. One ball is taken from first box and transferred to 2 nd  box. And then another ball is drawn from the second box. What is the probability that the second ball is Red?  Let us assume that we draw red ball from first box and then we have 5 red in 2 nd  box
Solution …. 3/8 *5/11 =  15/88 Suppose we draw white ball from first box:  5/8*4/11 = 20/88 (multiply because there is & between them).  Now add these two:  35/88 answer.  (add because there is OR between them).  (in first possibility, we have red ball from the first box and again red ball from 2 nd  box. In 2 nd  possibility, we have white from 1 st  and red from 2 nd  box.).
ABOUT AFTERSCHO☺OL  Afterschoool conducts three year integrated PGPSE (after class  12 th   along with  IAS / CA / CS ) and 18 month PGPSE (Post Graduate Programme in Social Entrepreneurship) along with preparation for  CS / CFP / CFA  /CMA / FRM . This course is also available online also. It also conducts workshops on social entrepreneurship in schools and colleges all over India – start social entrepreneurship club in your institution today with the help from afterschoool and help us in developing society.
Why such a programme? To promote people to take up entrepreneurship and help develop the society To enable people to take up franchising and other such options to start a business / social development project To enable people to take up social development as their mission To enable people to promote spirituality and positive thinking in the world
Who are our supporters? Afterschoolians, our past beneficiaries, entrepreneurs and social entrepreneurs are supporting us. You can also support us – not necessarily by money – but by being promotor of our concept and our ideas.
About AFTERSCHO☺OL  PGPSE – the best programme for developing great entrepreneurs Most flexible, adaptive but rigorous programme Available in distance learning mode Case study focused- latest cases  Industry oriented practical curriculum Designed to make you entrepreneurs – not just an employee Option to take up part time job – so earn while you learn  The only absolutely free course on internet
Workshops from AFTERSCHO☺OL  IIF, Delhi CIPS, Jaipur ICSI Hyderabad Branch Gyan Vihar, Jaipur Apex Institute of Management, Jaipur Aravali Institute of Management, Jodhpur Xavier Institute of Management, Bhubaneshwar  Pacific Institute, Udaipur Engineering College, Hyderabad
Flexible Specialisations: Spiritualising business and society Rural development and transformation HRD and Education, Social Development NGO and voluntary work Investment analysis,microfinance and inclusion  Retail sector, BPO, KPO Accounting & Information system  (with CA / CS /CMA) Hospital management and Health care Hospitality sector and culture and heritage Other sectors of high growth, high technology and social relevance
Salient features: The only programme of its kind (in the whole world) No publicity and low profile course For those who want to achieve  success in life  – not just a degree Flexible  – you may stay for a month and continue the rest of the education by distance mode. / you may attend weekend classes  Scholarships for those from poor economic background Latest  and constantly changing curriculum – keeping pace  with the time Placement  for those who are interested Admissions open throughout the year  Latest and most advanced technologies, books and study material
Components  Pedagogy curriculum and approach based on IIM Ahmedabad and ISB Hyderabad (the founder is alumnus from IIMA & ISB Hyderabad) Meditation, spiritualisation, and self development  Essential softwares for business Business plan,  Research projects Participation in conferences / seminars Workshops on leadership, team building etc.  Written submissions of research projects/articles / papers Interview of entrepreneurs, writing biographies of entrepreneurs Editing of journals / newsletters Consultancy / research projects  Assignments,  communication skill workshops Participation in conferences and seminars Group discussions, mock interviews, self development diaryng  Mind Power Training & writing workshop (by Dr. T.K.Jain)
Pedagogy  Case analysis, Articles from Harvard Business Review  Quiz, seminars, workshops, games,  Visits to entrepreneurs and industrial visits Presentations, Latest audio-visuals Group discussions and group projects Periodic self assessment Mentoring and counselling Study exchange programme (with institutions out of India) Rural development / Social welfare projects
Branches AFTERSCHO☺OL  will shortly open its branches in important cities in India including Delhi, Kota, Mumbai, Gurgaon and other important cities. Afterschooolians will be responsible for managing and developing these branches – and for promoting social entrepreneurs.
Case Studies We want to write case studies on social entrepreneurs, first generation entrepreneurs, ethical entrepreneurs. Please help us in this process. Help us to be in touch with entrepreneurs, so that we may develop entrepreneurs.
Basic values at AFTERSCHO☺OL  Share to learn more Interact to develop yourself Fear is your worst enemy Make mistakes to learn  Study & discuss  in a group Criticism is the healthy route to mutual support and help  Ask fundamental questions : why, when, how  & where? Embrace change – and compete with yourself only
www.afterschoool.tk   social entrepreneurship for better society

Quantitative Aptitude And Mathematics

  • 1.
    STATISTICS & BUSINESSPROBLEMS AFTERSCHO☺OL – DEVELOPING CHANGE MAKERS CENTRE FOR SOCIAL ENTREPRENEURSHIP PGPSE PROGRAMME – World’ Most Comprehensive programme in social entrepreneurship & spiritual entrepreneurship OPEN FOR ALL FREE FOR ALL
  • 2.
    STATISTICS & BUSINESSPROBLEMS Dr. T.K. Jain. AFTERSCHO☺OL Centre for social entrepreneurship Bikaner M: 9414430763 [email_address] www.afterschool.tk , www.afterschoool.tk
  • 3.
    Find the binomialdistribution if the mean is 48 standard deviation is 4.
  • 4.
    P(A) =1/3, P(B)= ½, P(A-B) = 1/5, what is the probability that only B will happen? P(A) = 1/3 (WHICH INCLUDES A+B ALSO). P(A-B) = 1/5 (ONLY A – BECAUSE HERE B IS EXCLUDED) P(A &B) (Together) = 1/3-1/5 = 2/15 P(ONLY B) = ½ - 2/15 = 11/30 ans.
  • 5.
    What is theprobability that 4 children selected at random would have different birthdays? For the first boy there are 365 choices, for second, there are 364 choices, for third there are 363 choices and for 4 th there are 362 choices. Thus the probability is (365*364*363*362) / (365^4) = .983644 answer
  • 6.
    There are 3boxes with following details: Box 1. (5 red,7 white, 6 blue) box 2: (4red,8 white,6 blue), box III : (3 red,4 white,2 blue), if one ball is drawn at random from each of these, what is the probability that we have 3 balls of same colour?
  • 7.
    Solution. Letus assume that we get Red from each: 5/18*4/18* 3/9 = 60/2916 For white : 7/18*8/18*4/9 = 224 /2916 For blue: 6/18*6/18*2/9 = 72/2916 = 356/2916 : = .122 ans.
  • 8.
    What is theprobability that a leap year selected at random will have 53 Saturdays? We have 52 week plus one extra day in a normal year. This extra day can be any one from Mon. to Sun. In leap year, we have 2 extra days thus we can have these 2 extra days on any of MON+Tue or any combination of 2 days. Thus we have 2/7 probability that the leap year will have 53 Saturday. Ans.
  • 9.
    A pocket of10 components include 3 defectives. If 4 components are selected from the pocket at random, what is the expected value of the number of defectives? 1.199 .099 .6 .5 0 .033 .3 .5 .167 7c1*3c3/10c4 7c2*3c2/10c4 7c3*3c1/10c4 7c4/10c4 3 2 1 0
  • 10.
    30% failed inAcct. 40% failed in Eco and 50% failed in at least one of these papers. If we randomly pick up a person, who is failed in Eco,what is the probability that he has passed Acct? Let us find the % for those who have failed in both the papers. 30+40 – X = 50 X = 20 thus there is 50% probability that he has passed Accts.
  • 11.
    A problem wasgiven to Mayank, Goti and Nidhi (pgpse students), the probability they will solve is 1/3, 1/5 and ½, what is the probability that the problem will be solved? Let us assume that Mayank doesn’t solve it: 2/3, Goti doesn’t solve it 4/5 and Nidhi also doesn’t solve it ½. All 3 don’t solve it : 2/3*4/5*1/2 = 8/30. thus problem will be solved : 22/30 or 11/15 answer.
  • 12.
    If NC2 =NC5, what is N ? N = 2+5 = 7 Thus N = 7 ans.
  • 13.
    How many numbersof 5 digits can be formed with 0,1,2,3,4,6,8? For the first digit we have 6 options, for 2 nd digit we have 6 options (the digit used earlier will not be used), for 3 rd digit we have 5 options, and for 4 th digit we have 4 options and for last 5 th digit we have 3 options). Multiply all these to get the answer: =6*6*5*4*3* =2160 answer. If repetition is allowed: 6*7*7*7*7 =14406 ans.
  • 14.
    There are 2boxes. The first contains 3 red and 5 white balls. The 2 nd contains 4 red and 6 white ball. One ball is taken from first box and transferred to 2 nd box. And then another ball is drawn from the second box. What is the probability that the second ball is Red? Let us assume that we draw red ball from first box and then we have 5 red in 2 nd box
  • 15.
    Solution …. 3/8*5/11 = 15/88 Suppose we draw white ball from first box: 5/8*4/11 = 20/88 (multiply because there is & between them). Now add these two: 35/88 answer. (add because there is OR between them). (in first possibility, we have red ball from the first box and again red ball from 2 nd box. In 2 nd possibility, we have white from 1 st and red from 2 nd box.).
  • 16.
    ABOUT AFTERSCHO☺OL Afterschoool conducts three year integrated PGPSE (after class 12 th along with IAS / CA / CS ) and 18 month PGPSE (Post Graduate Programme in Social Entrepreneurship) along with preparation for CS / CFP / CFA /CMA / FRM . This course is also available online also. It also conducts workshops on social entrepreneurship in schools and colleges all over India – start social entrepreneurship club in your institution today with the help from afterschoool and help us in developing society.
  • 17.
    Why such aprogramme? To promote people to take up entrepreneurship and help develop the society To enable people to take up franchising and other such options to start a business / social development project To enable people to take up social development as their mission To enable people to promote spirituality and positive thinking in the world
  • 18.
    Who are oursupporters? Afterschoolians, our past beneficiaries, entrepreneurs and social entrepreneurs are supporting us. You can also support us – not necessarily by money – but by being promotor of our concept and our ideas.
  • 19.
    About AFTERSCHO☺OL PGPSE – the best programme for developing great entrepreneurs Most flexible, adaptive but rigorous programme Available in distance learning mode Case study focused- latest cases Industry oriented practical curriculum Designed to make you entrepreneurs – not just an employee Option to take up part time job – so earn while you learn The only absolutely free course on internet
  • 20.
    Workshops from AFTERSCHO☺OL IIF, Delhi CIPS, Jaipur ICSI Hyderabad Branch Gyan Vihar, Jaipur Apex Institute of Management, Jaipur Aravali Institute of Management, Jodhpur Xavier Institute of Management, Bhubaneshwar Pacific Institute, Udaipur Engineering College, Hyderabad
  • 21.
    Flexible Specialisations: Spiritualisingbusiness and society Rural development and transformation HRD and Education, Social Development NGO and voluntary work Investment analysis,microfinance and inclusion Retail sector, BPO, KPO Accounting & Information system (with CA / CS /CMA) Hospital management and Health care Hospitality sector and culture and heritage Other sectors of high growth, high technology and social relevance
  • 22.
    Salient features: Theonly programme of its kind (in the whole world) No publicity and low profile course For those who want to achieve success in life – not just a degree Flexible – you may stay for a month and continue the rest of the education by distance mode. / you may attend weekend classes Scholarships for those from poor economic background Latest and constantly changing curriculum – keeping pace with the time Placement for those who are interested Admissions open throughout the year Latest and most advanced technologies, books and study material
  • 23.
    Components Pedagogycurriculum and approach based on IIM Ahmedabad and ISB Hyderabad (the founder is alumnus from IIMA & ISB Hyderabad) Meditation, spiritualisation, and self development Essential softwares for business Business plan, Research projects Participation in conferences / seminars Workshops on leadership, team building etc. Written submissions of research projects/articles / papers Interview of entrepreneurs, writing biographies of entrepreneurs Editing of journals / newsletters Consultancy / research projects Assignments, communication skill workshops Participation in conferences and seminars Group discussions, mock interviews, self development diaryng Mind Power Training & writing workshop (by Dr. T.K.Jain)
  • 24.
    Pedagogy Caseanalysis, Articles from Harvard Business Review Quiz, seminars, workshops, games, Visits to entrepreneurs and industrial visits Presentations, Latest audio-visuals Group discussions and group projects Periodic self assessment Mentoring and counselling Study exchange programme (with institutions out of India) Rural development / Social welfare projects
  • 25.
    Branches AFTERSCHO☺OL will shortly open its branches in important cities in India including Delhi, Kota, Mumbai, Gurgaon and other important cities. Afterschooolians will be responsible for managing and developing these branches – and for promoting social entrepreneurs.
  • 26.
    Case Studies Wewant to write case studies on social entrepreneurs, first generation entrepreneurs, ethical entrepreneurs. Please help us in this process. Help us to be in touch with entrepreneurs, so that we may develop entrepreneurs.
  • 27.
    Basic values atAFTERSCHO☺OL Share to learn more Interact to develop yourself Fear is your worst enemy Make mistakes to learn Study & discuss in a group Criticism is the healthy route to mutual support and help Ask fundamental questions : why, when, how & where? Embrace change – and compete with yourself only
  • 28.
    www.afterschoool.tk social entrepreneurship for better society