Llamas are excellent pack animals. It is known that the weight of supplies carried by llamas follows a normal distribution with a mean of 62. 5 pounds and a standard deviation of 6 pounds. The middle 50 % of weights of supplies carried by a randomly chosen llama is between _____ and _____. Group of answer choices 0 and 62. 5 pounds 58. 45 and 66. 55 pounds 56. 5 and 68. 5 pounds There is not enough information

Llamas are excellent pack animals. It is known that the weight of supplies carried by llamas follows a normal distribution with a mean of 62. 5 pounds and a standard deviation of 6 pounds. The middle 50 % of weights of supplies carried by a randomly chosen llama is between _ and _. Group of answer choices 0 and 62. 5 pounds 58. 45 and 66. 55 pounds 56. 5 and 68. 5 pounds There is not enough information

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

Llamas are excellent pack animals. It is known that the weight of supplies carried by llamas follows a normal distribution with a mean of 62. 5 pounds and a standard deviation of 6 pounds.

The middle 50 % of weights of supplies carried by a randomly chosen llama is between _____ and _____.

Group of answer choices

0 and 62. 5 pounds

58. 45 and 66. 55 pounds

56. 5 and 68. 5 pounds

There is not enough information

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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