Author Question: Of the 3800 students at a college, 280 are mature students. 50 students are selected at random from ... (Read 133 times)

Metfan725 · **on:** Jul 24, 2018

Of the 3800 students at a college, 280 are mature students. 50 students are selected at random from the 3800 students at the college and asked to participate in a survey.

The questions in the survey relate to the students need for financial assistance. The random variable X represents the number of mature students in the sample. A) hypergeometric; N = 3800, n = 50, k = 280, x = 0, 1, 2, . . . , 50
B) hypergeometric; N = 3800, n = 280, k = 50, x = 0, 1, 2, . . . , 50
C) hypergeometric; N = 3800, n = 50, k = 280, x = 0, 1, 2, . . . , 280
D) not hypergeometric

Question 2

Assuming that all conditions are met to approximate a binomial probability distribution with the standard normal distribution, then to compute P(x 23 ) from the binomial distribution we must compute as the normal approximation.

A) P(x 23.5 ) B) P(x 23.5 ) C) P(x 22.9 ) D) P(x 23.1 )