WorksheetsStatistics 9th class
Total questions: 20
Worksheet time: 20mins
The values of 11 houses on Washington St. are shown in the table below. What is the mode?
$100,000
$175,000
$200,000
$700,000
The data set represents the scores on a mathematics quiz. What is the frequency for the interval 70-79?
58, 79, 81, 99, 68, 92, 76, 84, 53, 57, 81, 91, 77, 50, 65, 57, 51, 72, 84, 89
2
3
4
5
Calculate the MEAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7
7
7.44
8
7 and 8
Calculate the MEDIAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7
7
7.44
8
7 and 8
Calculate the MODE for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7
7
7.44
8
7 and 8
Calculate the RANGE for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7
7
7.44
8
7 and 8
4,2,7,4,3
How many kids have dogs and cats for pets?
Which measure of central tendency would best represent this data?
Mean
Median
Mode
Range
For how many weeks was the data collected?
48
50
52
54
The observation 20 will be in the class _____
0 - 10
10 -20
20-30
30-40
The class mark of the class 45 - 55 is
50
45
55
47.5
If all observations 3, 7, 9, 18, 21, 32 are multipiied by 3, then the new mean is _____
15
90
45
60
In histogram, _______ are represented on the X-axis.
Frequencies
Class marks
Class boundary points
Range
Profit and loss account of the company obtained from company report is _____ data.
Primary
Secondary
Numerical
Qualitative
The mean of 2/5, 5/7 ,3/5 and 2/7 is _______.
1/2
3/5
5/7
2
