Question

Find each of the following probabilities for a normal distribution.

a. p(-1.80 b. p(-0.40 c. p(0.25 d. p(-0.90

Answer 1

To find the probabilities in a normal distribution, we use the standard normal distribution table or a calculator to find the corresponding z-score and then calculate the probability.

Step-by-step explanation:

For each of the given probabilities in a normal distribution, we can use the standard normal distribution table or a calculator to find the corresponding z-score and then calculate the probability.

a. To find p(-1.80), we calculate the area under the standard normal distribution to the left of -1.80. This can be found by using a calculator or the standard normal distribution table.

b. To find p(-0.40), we calculate the area under the standard normal distribution to the left of -0.40.

c. To find p(0.25), we calculate the area under the standard normal distribution to the left of 0.25.

d. To find p(-0.90), we calculate the area under the standard normal distribution to the left of -0.90.