Mathematics, 26.03.2020 01:53 bankzdown
Suppose that in a certain metropolitan area, 90% of all households have cable TV. Let x denote the number among four randomly selected households that have cable TV. Then x is a binomial random variable with n = 4 and p = 0.9. (Round your answers to four decimal places.)
a. Calculate p(2) = P(x = 2).
b. Interpret this probability.
i. This is the probability that at least 2 out of 4 selected households have cable TV.
ii. This is the probability that exactly 2 out of 10 selected households have cable TV.
iii. This is the probability that exactly 2 out of 4 selected households have cable TV.
iv. This is the probability that at least 2 out of 10 selected households have cable TV.
c. Calculate p(4), the probability that all four selected households have cable TV.
d. Determine P(x ≤ 3).
Answers: 1
Mathematics, 21.06.2019 16:00
Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5
Answers: 2
Mathematics, 21.06.2019 19:50
The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50
Answers: 1
Mathematics, 22.06.2019 00:00
The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?
Answers: 1
Suppose that in a certain metropolitan area, 90% of all households have cable TV. Let x denote the n...
Mathematics, 08.12.2019 06:31
Mathematics, 08.12.2019 06:31
Mathematics, 08.12.2019 06:31
Mathematics, 08.12.2019 06:31
Mathematics, 08.12.2019 06:31