Question

1) The following probabilities are based on data collected from U.S. adults. Individuals are placed into a weight category based on weight, height, gender and age.

	underweight	healthy weight	overweight (not obese)	obese
Probability	0.021	0.377	0.34	0.262

Based on this data, what is the probability that a randomly selected U.S. adult is not underweight?

Your answer should be given to 3 decimal places, and please show work~

Answer 1

The following probabilities are based on data collected from U.S. adults. Individuals are placed into a weight category based on weight, height, gender and age.

	underweight	healthy weight	overweight (not obese)	obese
Probability	0.021	0.377	0.34	0.262

We want fo find, the probability that a randomly selected U.S. adults is not underweight. That is to find, P(Not underweight)

P(Not underweight) = 1 - P(underweight) = 1 - 0.021 = 0.979

=> P(Not underweight) = 0.979