1. Which of the following formulas is used to calculate the population standard deviation? A. o = E(u – X)²/N C. s = D. a2 = E(X – )²/ N %3D B. ož: %3D %3D
1. Which of the following formulas is used to calculate the population standard deviation? A. o = E(u – X)²/N C. s = D. a2 = E(X – )²/ N %3D B. ož: %3D %3D
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Answer numbers 11-15
Transcribed Image Text:11. Which of the following formulas is used to calculate the
population standard deviation?
A. o을 3DΣ(u-X)2/N
B. of =
C. s =
D. a? = E(X- H)²/ N
%3D
%3D
12. The Department of Health has the following data of the number
of infected persons of Covid-19 in five high-risk areas in the
country, 51, 89, 129, 215, and 297. Suppose samples of size 2
high-risk areas are drawn from this population, what example
of the sampling distribution of the sample mean for normal
population portrays the situation?
A. variance is known
B. variance is unknown
C. standard deviation is small
D. standard deviation is large
13. Given u = 88, X = 90 s = 2, and n =
15.
This is an example of
the sampling distribution of the sample mean for a normal
population when the population variance is
A. unknown
B. known
C. large
D. small
14. A researcher used to develop a problem-solving test to
randomly selected 100 Grade 11 students. From this sample,
the mean and standard deviation is 90 and 4 respectively. The
mean of the population is 88. The researcher is in a situation
of the sampling distribution of the sample mean wherein the
population variance is
A. unknown
B. known
C. large
D. small
15. Given u = 54.2, o = 7.8, X =60.2 and n = 76. This is an example
%3D
of the sampling distribution of the sample mean for a normal
population when the population variance is
A. unknown
B. known
C. large
D. smal
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