For males in a certain town, the systolic blood pressure is normally distributed. with a mean of 120 and a standard deviation of 7. If 228 males from the town are randomly selected to participate in a study, how many of them would be expected to have a systolic blood pressure less than 136, to the nearest whole number?

For males in a certain town, the systolic blood pressure is normally distributed. with a mean of 120 and a standard deviation of 7. If 228 males from the town are randomly selected to participate in a study, how many of them would be expected to have a systolic blood pressure less than 136, to the nearest whole number?

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 14PPS

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Question

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Normal Distribution w/ Population Size

For males in a certain town, the systolic
blood pressure is normally distributed
with a mean of 120 and a standard
deviation of 7. If 228 males from the town
are randomly selected to participate in a
study, how many of them would be
expected to have a systolic blood pressure
less than 136, to the nearest whole
number?
Statistics Calculator
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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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