Question

Bryse is 46 years old. Based on a normal distribution with mean 52.8 years and standard deviation 10.3 , what is the probability that a skydiver will be 46 years of age or more?

a. 0.2546
b. 0.950
c. 0.1409
d. 0.7454

Answer 1

To find the probability that a skydiver will be 46 years of age or more, calculate the z-score and use the z-table. The answer is option a. 0.2546.

Step-by-step explanation:

To find the probability that a skydiver will be 46 years of age or more, we need to calculate the z-score and use the z-table. The z-score formula is:

z = (x - mean) / standard deviation

Plugging in the values, we get:

z = (46 - 52.8) / 10.3

Solving for z gives us -0.659

Using the z-table, the probability corresponding to -0.659 is 0.2546

Therefore, the answer is option a. 0.2546.