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9. The mean cost customers pay for gasoline in a gas station is SAR 75. The distrıbu cost of gasoline is approximately normal with a standard deviation of SAR 12. What is the probability that a randomly selected customer will pay between SAR 60 and SAR 87? A) 0.3413 B) 0.7357 C) 0.2643 D) 0.3944 10. Families spend on average SAR 750 per month on entertainment. Assuming that the food costs are normally distributed with standard deviation SAR 125, what is the probability that a family spends less than 600 per month? A) 0.3849 B) 0.8850 C) 0.6151 D) 0.1150

9. The mean cost customers pay for gasoline in a gas station is SAR 75. The distrıbu cost of gasoline is approximately normal with a standard deviation of SAR 12. What is the probability that a randomly selected customer will pay between SAR 60 and SAR 87? A) 0.3413 B) 0.7357 C) 0.2643 D) 0.3944 10. Families spend on average SAR 750 per month on entertainment. Assuming that the food costs are normally distributed with standard deviation SAR 125, what is the probability that a family spends less than 600 per month? A) 0.3849 B) 0.8850 C) 0.6151 D) 0.1150

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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9. The mean cost customers pay for gasoline in a gas station is SAR 75. The distribu cost of gasoline is approximately normal with a standard deviation of SAR 12. What is the probability that a randomly selected customer will pay between SAR 60 and SAR 87? A) 0.3413 B) 0.7357 C) 0.2643 D) 0.3944 10. Families spend on average SAR 750 per month on entertainment. Assuming that the food costs are normally distributed with standard deviation SAR 125, what is the probability that a family spends less than 600 per month? A) 0.3849 B) 0.8850 C) 0.6151 D) 0.1150
Transcribed Image Text:9. The mean cost customers pay for gasoline in a gas station is SAR 75. The distribu cost of gasoline is approximately normal with a standard deviation of SAR 12. What is the probability that a randomly selected customer will pay between SAR 60 and SAR 87? A) 0.3413 B) 0.7357 C) 0.2643 D) 0.3944 10. Families spend on average SAR 750 per month on entertainment. Assuming that the food costs are normally distributed with standard deviation SAR 125, what is the probability that a family spends less than 600 per month? A) 0.3849 B) 0.8850 C) 0.6151 D) 0.1150
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