Use the normal distribution to approximate the desired probability.
-Find the probability of selecting exactly 5 girls.
A)0.022
B)0.122
C)0.001
D)0.061

Question

Quizplus · Accepted Answer

To solve this, we would typically use the binomial distribution formula, but when approximating with a normal distribution, we need more context such as the number of trials (n) and the probability of success (p) in each trial. Assuming a scenario where the approximation to a normal distribution is valid (large n, np and n(1-p) are both greater than 5), and without specific numbers, we can't directly calculate the probability. However, given the options, 0.122 seems like a reasonable probability for selecting exactly 5 girls out of a larger group, assuming a near 50% chance of selecting a girl each time, which would be common in gender selection problems. This is a rough approximation and the exact answer would depend on the specific details of the problem.

Use the Normal Distribution to Approximate the Desired Probability