Mathematics, 15.10.2019 18:30, renee9913
In a study by peter d. hart research associates for the nasdaq stock market, it was determined that 20% of all stock investors are retired people. in addition, 40% of all u. s. adults invest in mutual funds. suppose a random sample of 25 stock investors is taken. a. what is the probability that exactly six are retired people? b. what is the probability that 9 or more are retired people? c. how many retired people would you expect to find in a random sample of 25 stock investors? d. suppose a random sample of 20 u. s. adults is taken. what is the probability that exactly seven adults invested in mutual funds? e. suppose a random sample of 20 u. s. adults is taken. what is the probability that fewer than seven adults invested in mutual funds? f. suppose a random sample of 20 u. s. adults is taken. what is the probability that none of the adults invested in mutual funds? g. suppose a random sample of 20 u. s. adults is taken. what is the probability that 11 or more adults invested in mutual funds? h. for parts eāg, what exact number of adults would produce the highest probability? how does this compare to the expected number?
Answers: 2
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 20:00, zgueyeu
The two cylinders are similar. if the ratio of their surface areas is 9/1.44 find the volume of each cylinder. round your answer to the nearest hundredth. a. small cylinder: 152.00 m3 large cylinder: 950.02 m3 b. small cylinder: 972.14 m3 large cylinder: 12,924.24 m3 c. small cylinder: 851.22 m3 large cylinder: 13,300.25 m3 d. small cylinder: 682.95 m3 large cylinder: 13,539.68 m3
Answers: 2
Mathematics, 21.06.2019 23:00, BeautyxQueen
Who long does it take to drive 150 miles at 45 miles per hour
Answers: 2
Mathematics, 21.06.2019 23:20, lyss12326
Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?
Answers: 1
Do you know the correct answer?
In a study by peter d. hart research associates for the nasdaq stock market, it was determined that...
Questions in other subjects:
Mathematics, 28.01.2021 05:50
Social Studies, 28.01.2021 05:50
Health, 28.01.2021 05:50
Mathematics, 28.01.2021 05:50
Mathematics, 28.01.2021 05:50
Mathematics, 28.01.2021 05:50
