Consider the results of a survey conducted by a set of researchers regarding the

Question

Consider the results of a survey conducted by a set of researchers regarding the use of the latest smart phones. This study was conducted using a set of high school students Gender Use the latest smartphone Male | emale ! lotal 52 28 80 30 48 78 82 76 158 Yes Total If a student is selected randomly, calculate the probabilities of the following events. The student is a male a) b) The student does not use a latest smart phone The student is a female and uses a latest smart phone c) d) The student is a female or uses the latest smart phone

Explanation / Answer

Write back to me in case of doubts. Pls find below formulae and answers:

a. The student is a male?

P( student is a male) = total male students/total students = 80/158 = .5063

b. P(students doesn't use latest smart phone) = Total students who dont use latest phone/total = 76/158 = .4810

c. P( female, latest smart phone user) = 30/158 = .1890

d. P(female or latest smart phone user) = (78+82-30)/158 = .8228

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