Introduction We as a group conduct a survey regarding to the height of student PPISMP TESL JUNE 2011. Fromthe survey, we analyzed and calculate based on mode, median and mean of the students height. DEFINITION What is a Histogram?• A Histogram is a vertical bar chart that depicts the distribution of a set of data.
Information Mode The average value, calculated by adding all the observations and dividing by the number of observations Median Middle value of a list If the list has an even number of entries, the median is equal to the sum of the two middle (after sorting) numbers divided by two Mean the mode is the most common (frequent) value.
Survey Form A survey on the height of PPISMP TESL A survey on the height of PPISMP TESL Semester 3 June 2011 intake students Semester 3 June 2011 intake studentsAgeAge :________________________ :________________________ 19ClassClass :________________________ :________________________ TESL SK2GenderGender :________________________ :________________________ maleHeight(cm) :________________________Height(cm) :________________________ 180 cm Thank you for your cooperation Thank you for your cooperationWe conducted a survey of height with the total of 77 people in PPISMP TESL Semester 3 June 2011 intake
Analysis• Mode = 155 – 159 HEIGHT FREQUENCY 150 – 154 10 155 – 159 29• Median =Using formula L + h/f (n/2 - c)• L= is the lower class boundary of median class h =is the size of median class i.e. difference between upper and lower class boundaries of median class f= is the frequency of median class c =is previous cumulative frequency of the median class n/2= is total no. of observations divided by 2Calculation:• 154.5+ (38-16)= 157.53