Find the population variance and standard deviation. 8, 11, 15, 17, 19O
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:Find the population variance and standard deviation.
1.
8, 11, 15, 17, 19 O
2.
Find the sample variance and standard deviation.
5, 55, 15, 49, 33, 28, 32, 30, 33, 30 -
Choose the correct answer below. Fill in the answer box to complete your choice.
(Round to two decimal places as needed.)
O A. 2-
3.
The following data represent the flight time (in minutes) of a random sample of six flights from Las Vegas, Nevada, to Newark, New Jersey, on
United Airlines.
282, 270, 266, 257, 260, 267 O
Compute the range and sample standard deviation of flight time.
The range of flight time is Ominutes.
4.
Which histogram depicts a higher standard deviation?
107
40 44 48 52 56 60
40
50
60
70
(a)
Choose the correct answer below.
A. Histogram a depicts the higher standard deviation, because the
bars are higher than the average bar in b.
B. Histogram b depicts the higher standard deviation, because the
distribution has more dispersion.
OC. Histogram b depicts the higher standard deviation, since it is
more bell shaped.
OD. Histogram a depicts the higher standard deviation, because the
distribution has more dispersion.
5.
An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for each of the four crashes was $411, $459,
$404, $234 O. Compute the range, sample variance, and sample standard deviation cost of repair.
kouanbau
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