1. For a particular sample of 77 scores on a psychology exam, the following results were obtained. First quartile = 44 Third quartile = 71 Standard deviation = 6 Range = 45 Mean = 64 Median = 57 Mode = 62 Midrange = 60 Answer each of the following: I. What score was earned by more students than any other score? Why? II. What was the highest score earned on the exam? III. What was the lowest score earned on the exam? IV. According to Chebyshev\'s Theorem, how many students scored between 40 and 88? V. Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 46 and 82? Solution First quartile = 44 Third quartile = 71 Standard deviation = 6 Range = 45 Mean = 64 Median = 57 Mode = 92 Midrange = 60: I. What score was earned by more students than any other score? Why? 92 mode is what which occur more frequeltly. II. What was the highest score earned on the exam? 60+45 / 2 = 105/2 = 52.5 this is wrong somewhere u r question went wrong .... please check once again !! cant anwer :( III. What was the lowest score earned on the exam? 60-45 / 2 = IV. According to Chebyshev\'s Theorem, how many students scored between 40 and 88? V. Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 46 and 82?.

1. 1. For a population containing N=902 individuals, what code number would you assign for:
a. First person in the list.
b. Fortieth person in the list.
c. Last person in the list.
2. Discuss Statistics and its 2 types. Cite 2 example for each in Marketing.
Solution
I would assign
a>First person =159
b>Fortieth person =198
c>Last person=158
Here I used the code,
CODE= (n+158)mod(902)
This will ensure a bijection in codes and very difficult to guess.
2>
Statistics is a very broad subject, with applications in a vast number of different fields. In
generally one can say that statistics is the methodology for collecting, analyzing, interpreting and
drawing conclusions from information. Putting it in other words, statistics is the methodology
which scientists and mathematicians have developed for interpreting and drawing conclusions
from collected data. Everything that deals even remotely with the collection, processing,
interpretation and presentation of data belongs to the domain of statistics, and so does the
detailed planning of that precedes all these activities.
Two types of statistics are
The purpose of every human being is to be happy during his lifetime.
Companies are constituted out of people, but their happiness purpose relies in profit
maximization and obtaining customer satisfaction. These two variables are directly
linked one to another, obtaining customer satisfaction is the cause (and not the effect)
for companies