Mean
83, 74, 81, 71, 77, 64, 52, 69
71.375
What is the median of this data?
70, 71, 70, 81, 68, 72, 72, 72, 76, 71, 68, 71, 76, 70, 77
71
Is there in outlier in the data?
If so, find the mean and median without that number.
54, 61, 68, 69, 71, 72, 73, 74, 74, 75, 75, 76, 77, 80, 82, 84
Outlier: 54
Median: 74.5
Mean: 74.25
What is the range of the data?
40, 43, 46, 47, 48, 49, 54, 55, 59
19
What is the mean absolute deviation of the data?
40, 43, 46, 47, 48, 49, 54, 55, 59
4.67
What is the mean of this data?
70, 71, 70, 81, 68, 72, 72, 72, 76, 71, 68, 71, 76, 70, 77
72.33
What is the median of the data?
6, 8, 14, 3, 6, 5, 3, 12, 2, 6, 6, 6, 6, 5, 12, 4, 3
6
Find the mode.
6.35, 7, 2.9, 0, 4, 7, 4.5, 0, 6, 6.85, 6.5, 7, 5.25, 5, 7
7
What is the interquartile range of the data?
40, 43, 46, 47, 48, 49, 54, 55, 59
10
What is mean absolute deviation?
3, 5, 5, 5, 5, 5, 5, 6, 7,14
Mean: 6
MAD: 1.8
What is the mean of this data?
6, 8, 14, 3, 6, 5, 3, 12, 2, 6, 6, 6, 6, 5, 12, 4, 3
6.29
What is the median of the data?
54, 61, 68, 69, 71, 72, 73, 74, 74, 75, 75, 76, 77, 80, 82, 84
74
Find the mode.
81, 78, 78, 80, 77, 78, 81, 79, 82, 81, 82, 74, 80, 77, 79, 80
78, 80, 81
What is the range of the data?
3, 5, 5, 5, 5, 5, 5, 6, 7, 14
11
What is the MAD?
7, 7, 9, 12, 6, 12, 18, 1, 6, 9, 12
Mean - 9
MAD - 3.27
What is the mean of the data?
54, 61, 68, 69, 71, 72, 73, 74, 74, 75, 75, 76, 77, 80, 82, 84
73.06
Find the median.
2, 2, 3, 4, 4, 4, 4, 4, 4, 4, 6, 7, 7, 7, 8
4
Which of the following is a statistical question?
A. How tall are you?
B. How many hours do students in your school spend on the computer?
C. How many concerts did you attend last year?
D. How far is the library from your house?
B
What is the interquartile range?
3, 5, 5, 5, 5, 5, 5, 6, 7, 14
1
Without using a calculator, which data has the highest MAD?
a. 67, 68, 68, 68, 69
b. 50, 51, 52, 53, 54
c. 3, 4, 5, 6, 7
d. 1, 3, 9, 14, 27
d. Numbers are more spread out and would be further away from mean.
Would you choose the mean or median to best represent this set of data? Explain.
188, 15, 190, 210, 205, 200
Mean: 168
Median: 195
Median - there is an outlier that will cause the mean to be lower.
For which set of data is 10 not the median?
A. 6, 8, 10, 14
B. 30.8, 12.6, 7.4, 1.5
C. 4, 11.4, 10
D. 10, 10, 10, 10
A
Which of the following is not a statistical question?
A. How much time do students in your school spend doing math homework?
B. What are the salaries of local city employees?
C. What is the age of the mayor of your city?
D. How many pets do families in your neighborhood have?
C
What is the range and IQR of the data?
7, 7, 5, 12, 6, 12, 18, 1, 6, 9, 12
Range - 17
IQR - 6
How much greater is the IQR than the MAD of this set of data?
Data Set: 15, 40, 30, 60, 55, 55, 60, 25
a. 30
b. 25
c. 15
d. 10
C