Question

# Question 1

A researcher asked 25 customers: how much would you pay for a television adapter with Internet

Access?’ Their grouped responses are as follows:

(a) calculate the mean of the dataset

(b) calculate the variance of the dataset

Question 2

A researcher is interested in whether or not University students study for 10 hours or more a week. A sample of 100 students is taken.

you are given the following set of information :

the probability that a randomly selected student from a University is a female is 0.55

the probability that a student studies for 10 hours or more a week is 0.60

given that the student selected studies 10 hours or more a week, the probability that this student is male is 0.4

1

A researcher asked 25 customers: quot; how much would you pay for a television adapter with Internet Access?’ Their grouped responses are as follows: Class Interval Frequency

099 2

100199…

Statistics and Probability