uppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and a standard deviation of 33.8 and 3.5 mpg, respectively. What is the probability that a randomly selected passenger car gets more than 35 mpg? Note: Round your final answer to 4 decimal places. What is the probability that the average mpg of four randomly selected passenger cars is more than 35 mpg? Note: Round your final answer to 4 decimal places. If four passenger cars are randomly selected, what is the probability that all of the passenger cars get more than 35 mpg? Note: Round your final answer to 4 decimal places.

uppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and a standard deviation of 33.8 and 3.5 mpg, respectively. What is the probability that a randomly selected passenger car gets more than 35 mpg? Note: Round your final answer to 4 decimal places. What is the probability that the average mpg of four randomly selected passenger cars is more than 35 mpg? Note: Round your final answer to 4 decimal places. If four passenger cars are randomly selected, what is the probability that all of the passenger cars get more than 35 mpg? Note: Round your final answer to 4 decimal places.

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

Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and a standard deviation of 33.8 and 3.5 mpg, respectively.

What is the probability that a randomly selected passenger car gets more than 35 mpg?

Note: Round your final answer to 4 decimal places.
What is the probability that the average mpg of four randomly selected passenger cars is more than 35 mpg?

Note: Round your final answer to 4 decimal places.
If four passenger cars are randomly selected, what is the probability that all of the passenger cars get more than 35 mpg?

Note: Round your final answer to 4 decimal places.

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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