What percentage of observation lie outside interquartile range of any distribution?
121/2%
25%
50%
621/2 %
75%
Correct answer is C
No explanation has been provided for this answer.
l. The mid values of the grouped marks are 2, 7, 12 and 17.
II The class interval is 4.
III The class boundaries are 0.5, 4.5, 9.5, 14.5 and 19.5
I only
II only
III only
I and II only
II and III only
Correct answer is B
0 - 4; Mid Values 0 + 4/2 = 2
5 - 9; 5 + 9/2 = 7
10 - 14; 10 + 14/2 = 12
15 - 19; 15 + 19/2 = 17
The class interval is 5 class boundaries are 0.5, 4.5, 9.5, 14.5, 19.5
The cumulative frequency curve may be used to find the
Variance
Standard deviation
Mode
Median
Mean
Correct answer is D
No explanation has been provided for this answer.
The number of goals scored by a football team in 20 matches is shown in the table above
What is the modal goal scored?
0
1
2
5
7
Correct answer is C
No explanation has been provided for this answer.
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