1. When data are collected in a statisticalstudy for only a portion or subset of
ID: 2916125 • Letter: 1
Question
1. When data are collected in a statisticalstudy for only a portion or subset of all elements of interest weare using a: (Points: 6)
A) sample
B) parameter
C) statistic
D) population
2.
You asked ten of your classmatesabout their weight. On the basis of this information, youstated that the average weight of all students in your universityor college is 145 pounds. This is an example of:
(Points:6)
descriptive statistics
inferential statistics
parameter
population
3.
A sample of eight observations ofvariables x and y is shown below:
x
5
3
7
9
2
4
6
8
y
20
23
15
11
27
21
17
14
Find the value of coefficient ofcorrelation, r.
x
5
3
7
9
2
4
6
8
y
20
23
15
11
27
21
17
14
Explanation / Answer
1) A) sample 2) inferential statistics3) 0.991
4) 15
5) mean is greater than the median and the median is greaterthan the mode.
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