Answered: Assume that the systolic blood pressure…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

Assume that the systolic blood pressure of 30-year-old males is normally distributed,
with an average of 122 mmHg and a standard deviation of 10 mmHg.
(i) A random sample of 16 men from this age group is selected. Calculate the probability that the average blood pressure of the sample will be greater than 125 mmHg.
(ii) A random sample of 16 men from this age group had their blood pressure measured.
Calculate the probability that the average blood pressure of this sample will be
between 118 and 124 mmHg.
(iii) Calculate the probability that the blood pressure of an individual male from this
population will be between 118 and 124 mmHg.

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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