distribution 1. The mean weight of 800 college students is 56 kg and the standard deviation is 5 kg. Assuming that the weight is normally distributed, determine how many students weigh: a. Between 60 kg and 70 kg. b. More than 68 kg. 2. Several intelligence tests follow a normal distribution with a mean of 10 and a standard deviation of 15. a. Determine the percentage of the population that would obtain a score between 95 and 110. b. For a population of 2,500, how man are expected to have a score above 125?

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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application of the normal
distribution
1. The mean weight of 800 college
students is 56 kg and the standard
deviation is 5 kg. Assuming that the
weight is normally distributed,
determine how many students weigh:
a. Between 60 kg and 70 kg.
b. More than 68 kg.
2. Several intelligence tests follow a
normal distribution with a mean of 100
and a standard deviation of 15.
a. Determine the percentage of the
population that would obtain a score
between 95 and 110.
b. For a population of 2,500, how many
are expected to have a score above
125?
Transcribed Image Text:application of the normal distribution 1. The mean weight of 800 college students is 56 kg and the standard deviation is 5 kg. Assuming that the weight is normally distributed, determine how many students weigh: a. Between 60 kg and 70 kg. b. More than 68 kg. 2. Several intelligence tests follow a normal distribution with a mean of 100 and a standard deviation of 15. a. Determine the percentage of the population that would obtain a score between 95 and 110. b. For a population of 2,500, how many are expected to have a score above 125?
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