Probability-Chapter 6 Questions & Answers

Probability-Chapter 6 Questions & Answers A population of birth weights has a mean of μ = 8.1, and a standard deviation of σ = 0.1. What is the probability of an individual weight being greater than 8.4? a. 99.87% b. 15.87% c. 2.28% d. 0.13% - ANSWER: 0.13% A population of insect weights is normal with a mean of μ = 16. If the probability of a weight falling between 10 and 22 is 95.44%, what is the standard deviation for this distribution? a. 1.5 b. 3 c. 6 d. 12 - ANSWER: 3 A population of plant heights has a mean of μ = 13 and standard deviation of σ = 2. What is the probability of an individual plant having a height between 10 and 16? a. 13.36% b. 68.27% c. 86.64% d. 93.32% - ANSWER: 86.64% Correctly order the following normal distribution following a z-score transformation: z-score:....................................