The weight of male americans between the ages of 18 and 25 is normally distributed, with a mean of 164.5 lb and a standard deviation of 26 lb. one definition of obesity states that a person is obese if the z-score of his or her weight is greater than 2. what is the obesity threshold weight for a young adult american male? round your answer to the nearest tenth.

X>216.5 pounds

Step-by-step explanation:

Let X represent the weight of male Americans between the ages of 18 and 25.

X is normally distributed, with a mean of 164.5 lb and a standard deviation of 26 lb.

A person is obese if the z-score of his or her weight is greater than 2

Let us find out corresponding X score for z=2

Thus  a person can be considered as obese if his weight exceeds 216.5 pounds.

i would say c is the best answer, hope it's right!

good luck! =)

cutie~

it is x=-4

step-by-step explanation: