Exhibit 6-2
The weight of football players is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds.
-Refer to Exhibit 6-2. The probability of a player weighing more than 241.25 pounds is
A)0.4505
B)0.0495
C)0.9505
D)0.9010

Question

Quizplus · Accepted Answer

We need to standardize the value of 241.25 using the formula z = (x - mu) / sigma, where x is the value we're interested in, mu is the mean, and sigma is the standard deviation. So z = (241.25 - 200) / 25 = 1.65. Then we can use a standard normal distribution table to find the probability of a value being greater than 1.65, which is 0.0495. Therefore, the answer is choice B.

Exhibit 6-2 the Weight of Football Players Is Normally Distributed with a with a Mean