QUESTION 1 Find the median. 30 32 30 33 33 30 35 32 40 36 36 34...

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  5. QUESTION 1 Find the median. 30 32 30 33 33 30 35 32 40 36 36 34...

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QUESTION 1
Find the median.
30 32 30 33
33 30 35 32
40 36 36 34
29 36 30 25
20 32 32 32

a) 32
b) 33
c) 36
d) 31.85

QUESTION 2
Find the mean of the set of data.
6.795, 11.470, 7.819, 13.481, 7.206
Round your answer to three decimal places.

a) 9.354
b) 11.693
c) 9.200
d) 2.800

QUESTION 3
Find the median.
0.64 1.46 0.80 1.62 0.64 0.84 1.17
1.46 1.53 0.91 0.64 1.10 1.47 0.89
0.47 1.10 0.84 1.47 1.72 0.64 0.56

a) 0.89
b) 0.91
c) 0.90
d) 1.46

QUESTION 4
Find the mode or modes.
The weights (in ounces) of 14 different apples are shown below.
5.0 5.5 4.6 6.2 4.1 5.0 5.5
5.7 6.0 6.9 5.0 4.8 6.9 4.4

a) 5.5,6.9
b) 5.0
c) 5.0,69
d) None

QUESTION 5
Solve the problem.
SPA Corporation has about 23,500 employees who serve as security guards The average length of service for these employees is 9.3 years with a standard deviation of 4.2 years. Compute the length of service for each employee. Round to the nearest one- tenth of year.

A time in service with az 13.
A time in service with a Z- score of 0.5
a) 14.8,7.2
b) 17.3,92
c) 7.4,94
d) 13.5,5.1

QUESTION 6
Find the range for the set of data given.
70 142 38 101 190

a) 190
b) 38
c) 152
d) 72

QUESTION 7
Find the standard deviation for the given data. Round your final answer to onemore decimal place than that used for the
observations.
The pH of a patient's blood:
7.40, 7.43, 7.41, 7.43, 7.37

a) 0.050
b) 0.040
c) 0.032
d) 0.001

QUESTION 8
Find the range for the set of data given.
117 527 136 607 404 237

a) 527
b) 490
c) 117
d) 101

QUESTION 9
Find the range for the set of data given.
0.193 0.116 0.529 0.346 0.64 0.246

a) 0.053
b) 0.116
c) 0.524
d) 0.529

QUESTION 10
Find the mean of the set of data.
226, 221, 213, 213, 213, 213, 221, 214, 214, 214, 221, 221
Round your answer to one decimal place.

a) 217.3
b) 217.0
c) 216.6
d) 217.7

QUESTION 12
Rank the data from lowest to highest and determine the requested quartile.
The following scores on the midterm exam in Chemistry 102 were recorded
93 81 59 69 82 74 61 77 95 84 88 71
86 97 63 72 89 80 60 98 91 62 78 83
76 81 91 66 83 96

Find the 3rd quartile
a) 76
b) 86
c) 88
d) 89

QUESTION 13
Find the standard deviation. Round to one more place than the data.
2, 3, 16, 18, 6, 19, 11, 18, 17

a) 1.5
b) 6.9
c) 7.4
d) 6.5

QUESTION 14
Find the mode or modes.
- 20, -24, 46, -24, 49, -24, 49

a) -49
b) -33.7
c) -24
d) -46

QUESTION 15
Find the mode or modes.
Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mode(s)
52 65 62
53 56 59
66 58 50

a) 57.9
b) 52, 65, 62, 53, 56, 59, 66, 58, 50
c) No mode
d) 58

QUESTION 16
Find the standard deviation. Round to one more place than the data.
14, 14, 10,7, 14, 14, 13, 19, 15, 15

a) 1.5
b) 2.7
c) 3.2
d) 2.9

QUESTION 18
Find the standard deviation. Round to one more place than the data.
18.1, 10.5, 32.3, 36.7, 17.0, 17.3

a) 2899.6
b) 3416.3
c) 10.17
d) 34.5

QUESTION 19
Solve the problem.
A radio station claims that the amount of advertising per hour of broadcast time has an average of 16minutes and a standard
deviation equal to 2.8 minutes. You listen to the radio station for 1 hour, at a randomly selected time, and carefully observe that
the amount of advertising time is equal to 10 minutes Calculate the I score for this amount of advertising time

a) -2.31
b) 0.46
c) 2.31
d) -15.6

QUESTION 20
Find the median.
31, 14, 7,5, 24, 12, 29, 31, 40, 35

a) 24
b) 29
c) 26.5
d) 23

QUESTION 21
Find the median.
3.5 1.6 2.4 3.7 4.1
39 1 0 36 42.34
3.7 2.2 1.5 1.2 3.4
27 0.4 3.7 2.0 3.6

a) 3.45
b) 2.94
c) 3.40
d) 3.50

QUESTION 22
Find the mode or modes.
93,25,93,13,25,29,56,93

a) 93
b) 25
c) 53.4
d) 42.5

QUESTION 24
Solve the problem.
Which score has the better relative position: a score of 52 on a test for which the mean is 43 and the standard deviation is 10, a
score of 3.3 on a test for which the mean is 2.6 and the standard deviation is 0.7 or a score of 356.2 on a test for which the mean is
337 and the standard deviation is 48?

a) A score of 356.2
b) A score of 3.3
c) The scores have the same relative position.
d) A score of 52

QUESTION 25
Find the median.
9,2, 26, 18, 24, 41, 33, 33

a) 26
b) 23.5
c) 25
d) 24

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