1. In a normal distribution, the mean is at the percentile.
2. Approximately
% of the scores...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 25.05.2021 20:50, tvail613
1. In a normal distribution, the mean is at the percentile.
2. Approximately
% of the scores in a normal distribution are within two standard deviations of
the mean.
3. On a math test, Chris scored at the 85th percentile. Which statement is true?
(1) Eighty-five percent of the students who took the test had the same score as Chris.
(2) Fifteen percent of the students had scores equal to or less than Chris.
(3) Eighty-five percent of the students who took the test had scores equal to or less than Chris.
(4) Chris scored 85% on the test.
4. The scores of a math class on a statistics exam were as follows:
72
76
91
74
83
79
93
85
97
91
89
81
87
88
86
94
84
Using intervals of 71-75, 76-80,..., construct a frequency and cumulative frequency table for the
data
Interval
Frequency
Cumulative
Frequency
5. Consider the following table, what shape would the bell curve take if graphed?
Goals Scored
0
1
2
3
4
5
6
7
Frequency
4
8
5
3
1
1
0
1
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