How good are you with figures and formulas? Find out with these Mathematics past questions and answers. This Test is useful for both job aptitude test candidates and students preparing for JAMB, WAEC, NECO or Post UTME.
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.
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.
0
1
2
5
7
Correct answer is C
No explanation has been provided for this answer.
0.75
1.75
1.9
2
2.15
Correct answer is B
No explanation has been provided for this answer.