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
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