Question

a. Suppose that a list of company CEOs is compiled, and 37% are over the age of 45. True or False: Q3 must be greater than 45.

b. Give one example of a data set with a large variation and one example of a data set with a small variation.

c. Find the probability of drawing four cards from a standard deck of cards and not getting all aces.

Answer 1

a) The correct answer is TRUE.

Q3 would be such that 25% should be over the age of Q3. Since 37% are above the age of 45 thus Q3 has to be larger than 45

b) Income of individuals of a country would be an example with larger variation as there are many poors as well as rich people in a country

Height of individuals of a country would be an example of data set with less variation as for human hieght should be something between 0 and 7-8 feets only.

c) P(None of the 4 cards is ace)

=