In a class of 100 students there are 70 boys whose average marks in a subject are 75. If the average marks of the complete class is 72, then what is the average of the girls?
73
65
68
74
The median of 13, 23, 12, 18, 26, 19, 14, is
18
23
26
27
The relationship between mean, median, and mode is
Median = 3 mean - 2 mode
Mode = 3 Median - 2 Mean
Median = 2 Mean - 3 Mode
Mode = 2 Median -3 Mean
The mean and median of a uni - nodal grouped data are 72.5 and 73.9 respectively. Then mode is
73.5
75.4
76.7
The mode of 10, 2, 8, 6, 7, 8, 9, 10, 10, 11, 10, is,
8
9
10
11
The mode when median is 125.6 and mean is 128 is
120.8
119.7
120.5
119.8
The arithmetic mean of first n natural numbers is
n/2
n/2 + 1
The median of 10, 20, 15, 29, 35, 42 is
20
24.5
28.5
Range of the values 20, 18, 37, 42, 3, 12, 15, 26 is
63
42
39
6
The mean of 9, 11, 13, P, 18, 19 is P. Then the value of P is
12
14
15
