What is the probability that the score is lower than 75 points when the test score is normally distributed with a mean of 82 points and standard deviation of 9? How many percent falls on 2 standard deviation from the mean of a normal distribution? Given that the average number of students taking HUMSS is 103 with standard deviation of 12, 95% of the data falls within how many students?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 7E
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What is the probability that the score is lower than 75 points when the test score is normally distributed with a mean of 82 points and standard deviation of 9?

How many percent falls on 2 standard deviation from the mean of a normal distribution?

Given that the average number of students taking HUMSS is 103 with standard deviation of 12, 95% of the data falls within how many students?

If the population mean is 28 with standard deviation of 2, what is the interval that falls within 68% of the data?

The average salary of entry level nurse is P35 000 with standard deviation of P5 000. Find the probability that the salary of a selected nurse is between P32 000 and P37 500?

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ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,