Male and female populations of tortoises under 80 years old are represented by age in the table below. Complete parts (a) through (d). (a) Approximate the population mean and standard deviation of age for males. (Round to two decimal places as needed.) Age Males Females (Round to two decimal places as needed.) o-9 10 5 11 10-19 15 (b) Approximate the population mean and standard deviation of age for females. 20-29 16 12 30-39 15 17 (Round to two decimal places as needed.) 40-49 20 23 50-59 20 23 60-69 16 15 (Round to two decimal places as needed.) 70-79 12 13 (c) Which gender has the higher mean age? V have the higher mean age.
Male and female populations of tortoises under 80 years old are represented by age in the table below. Complete parts (a) through (d). (a) Approximate the population mean and standard deviation of age for males. (Round to two decimal places as needed.) Age Males Females (Round to two decimal places as needed.) o-9 10 5 11 10-19 15 (b) Approximate the population mean and standard deviation of age for females. 20-29 16 12 30-39 15 17 (Round to two decimal places as needed.) 40-49 20 23 50-59 20 23 60-69 16 15 (Round to two decimal places as needed.) 70-79 12 13 (c) Which gender has the higher mean age? V have the higher mean age.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Male and female populations of tortoises under 80 years old are represented by age in the table below. Complete parts (a) through (d).
Transcribed Image Text:Male and female populations of tortoises
under 80 years old are represented by age in
the table below. Complete parts (a) through
(d).
(a) Approximate the population mean and standard deviation of age for males.
u =
(Round to two decimal places as needed.)
Age
Males
Females
(Round to two decimal places as needed.)
0-9
11
10
10-19
15
5
(b) Approximate the population mean and standard deviation of age for females.
20-29
16
12
30-39
15
17
(Round to two decimal places as needed.)
40-49
20
23
50-59
20
23
60-69
16
15
(Round to two decimal places as needed.)
70-79
12
13
(c) Which gender has the higher mean age?
V have the higher mean age.
(d) Which gender has the higher dispersion in age?
have the greater dispersion.
Expert Solution
Step 1
Formula for mean and standard deviation
Mean=∑f⋅x/n
Variance=((∑f⋅x2-(∑f⋅x)2/n)/n)
Standard deviation=√Variance
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