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6) If the mean of a set of 36 scores is 27 and two more scores of 40 and 42 are added, what is the new mean?
Round to 3 decimal places.
7) On an English exam, the scores were as follows:
43 91 73 65 56 77 82 91 82 65 98 65
SHOW ALL WORK FOR EACH.
a. Find the mean. d. Find the range.
b. Find the mode.
e. Find the standard deviation. (Round to 4 dps)
c. Find the median. 8) On a Statistics exam, the scores for the class are as follows:
74
74
77
77
75
68
65
77
67
SHOW ALL WORK FOR EACH.
a. Find the mean. d. Find the range.
b. Find the mode.
e. Find the standard deviation. c. Find the median. 66 (Round to 3 decimal places) 9) The scores on a screening test for new technicians are normally distributed with a mean 100 and standard
deviation of 18. Find the approximate percentage of applicants taking the test who score:
a. Between 82 and 118
b. Over 136
c. Less than 100
d. More than 64
e. Less than 64 or more than 118.
10) The weekly record of reported accidents in a large auto assembly plant for the past 14 weeks are as follows:
50
64
75
78
83
84
88
90
90
92
92
93
96
98
a. Find Q1
d. Find IQR
b. Find Q2 e. Determine any outliers (show work) c. Find Q3 f. Construct the Box and Whisker plot of the data. 11) The quiz scores for Mrs. Happyʹs class are as follows:
52 64 75 78 83 84 88 90 90 92 92 93 96 98
a. Construct a line plot of the data.
b. Find Q1....
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 Fall '
 Bonacci

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