Question

Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of

51.4

degrees.

Low Temperature (°F) Frequency

40-44 2

45-49 7

50-54 10

55-59 4

60-64 3

The mean of the frequency distribution is

nothing

degrees.

(Round to the nearest tenth as needed.)

Which of the following best describes the relationship between the computed mean and the actual mean?

A.The computed mean

is notis not

close to the actual mean because the difference between the means is

moremore

than 5% of the actual mean.

B.The computed mean

isis

close to the actual mean because the difference between the means is

moremore

than 5% of the actual mean.

C.The computed mean

isis

close to the actual mean because the difference between the means is

lessless

than 5% of the actual mean.

D.The computed mean

is notis not

close to the actual mean because the difference between the means is

lessless

than 5% of the actual mean.

Answer #1

Solution:

=> the mean of the frequency distribution is 51.8

=> option C. The computed mean is close to the actual mean because the difference between the means is less than 5% of the actual mean.

Find the mean of the data summarized in the given frequency
distribution. Compare the computed mean to the actual mean of 52.2
degrees.
Low Temp (°F) Frequency
40-44 1
45-49 5
50-54 11
55-59 5
60-64 2

Find the standard deviation, s, of sample data summarized in
the frequency distribution table given below by using the formula
below, where x represents the class midpoint, f represents the
class frequency, and n represents the total number of sample
values. Also, compare the computed standard deviation to the
standard deviation obtained from the original list of data values,
9.0.
Interval
30-36
37-43
44-50
51-57
58-64
65-71
Frequency
5
21
35
20
5
3
Standard deviation= ___ (Round to one...

Find the standard deviation, s, of sample data summarized in
the frequency distribution table given below by using the formula
below, where x represents the class midpoint, f represents the
class frequency, and n represents the total number of sample
values. Also, compare the computed standard deviation to the
standard deviation obtained from the original list of data values,
9.0.
Interval
2020-2929
3030-3939
4040-4949
5050-5959
6060-6969
7070-79
Frequency
55
2424
4242
1616
77
2
Standard deviation = ? (Round to...

Find the standard deviation, s, of sample data summarized in
the frequency distribution table below by using the formula below,
where x represents the class midpoint, f represents the class
frequency, and n represents the total number of sample values.
Also, compare the computed standard deviation to the standard
deviation obtained from the original list of data values,
11.1
sequals=StartRoot StartFraction n left bracket Summation from
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a graphical form of representing data
a tabular summary of a set of data showing the actual number of
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a graphical device for presenting categorical data
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most classes
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A recent study evaluated how addicted teenagers become to
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One of the important features of a camera is the battery life as
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Subcompact
Compact
50
30
35
35
46
61
58
58
57
57
41
24
37
53
54
20
34
37
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62
a. Assuming that the population variances from both...

One of the important features of a camera is the battery life as
measured by the number of shots taken until the battery needs to be
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Compact
48
29
38
30
41
63
51
56
56
57
50
26
40
55
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26
31
39
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63
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