Question 4 The first two columns of the accompanying table provide a frequency distribution, for the days to maturity of a sample of 40 short-tem investments. Calculate the mean and sample standard deviation. Days to maturity 30-39 Frequency 40-49 6. 50-59 60-69 6. 9. 70-79 80-89 90-99 457
Question 4 The first two columns of the accompanying table provide a frequency distribution, for the days to maturity of a sample of 40 short-tem investments. Calculate the mean and sample standard deviation. Days to maturity 30-39 Frequency 40-49 6. 50-59 60-69 6. 9. 70-79 80-89 90-99 457
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Transcribed Image Text:Question 4
The first two columns of the accompanying table provide a frequency distribution, for the days to maturity
of a sample of 40 short-temm investments. Calculate the mean and sample standard deviation.
Days to maturity
30-39
Frequency
1
40-49
6.
50-59
6.
60-69
70-79
6.
80-89
90-99
Question 5
Below are the percentages of the population over 25 years of age who have completed 4 years
of college or more in 50 states. Find the mean and standard deviation.
Percentage
15.2-19.6
19.7-24.1
24.2-28 6
28.7-33.1
33.2-37.6
37.7-42.1
42.2-46.6
Frequency
15
18
6.
1
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