4. Elementary and secondary schools were classified by the number of computers t

Question

4. Elementary and secondary schools were classified by the number of computers they had. Choose one of these schools at random. Computers | 1-10 11-20 21-50 51-100 100+ Schools 3170 4590 16,741 23,753 34,803 Choose one school at random. Find the probability that it has a. 50 or fewer computers b. More than 100 computers c. No more than 20 computers xxxY xyyy 5. The distribution of ages of CEOs is as follows Frequency Age 21-30 31-40 41-50 51-60 61-70 71-up Yyxx 27 29 24 If a CEO is selected at random, find the probability that his or her age is a. Between 31 and 40 b. Under 31 c. Over 30 and under 51 d. Under 31 or over 60

Explanation / Answer

Dear Student Thank you for using Chegg !! Given Computers 1~10 11~20 21~50 51~100 100+ Schools 3170 4590 16741 23753 34803 a) Probability that randomply selected school has 50 ir fewer computers Sample space = 83057 Number of schools with 100 Computers = 34803 Probability = 34803/83057 = 0.419025 c) No more than 20 computrs Number of schools with

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