(a) Product A (b) Product B (c)
Product C (d) Product D
- What is the weighted mean of first
10 natural numbers whose weights are
equal to the corresponding number?
(a) 7 (b) 5.5 (c) 5 (d) 4.5 - In a batch of 15 students, if the
marks of 10 students who passed are
70, 50, 95, 40, 60, 70, 80, 90, 75, 80
then the median marks of all the 15
students is:
(a) 40 (b) 50 (c) 60 (d) 70
28. The average age of 6 persons living
in a house is 23.5 years 3 of them are
major and their average age is 42 years.
The difference in ages of 3 minor
children is same. What is the mean of
the ages of minor children?
(a) 3 yr (b) 4 yr (c) 5 yr (d) 6 yr29. What is the median of the ages of
minor children?
(a) 3 yr (b) 5 yr (c) 7 yr (d) Cannot be
determined due to insufficient data- If ∑^ ( ) , ∑^ (
)= 20, what is the mean?
(a) 11/2 (b) 2/11 (c) 17/3 (d) 17/9 - In an examination the standard of
passing was 40%. Out of 9 students
who appeared 4 failed and the
remaining got 80%, 57%, 51%, 68%
and 79% marks. The median of the
percentage marks is equal to:
(a) 51% (b) 57% (c) 68% (d) 79% - Directions (Qs. 1-3) The arithmetic
mean GM and median of 06 positive
numbers a, a, b, b, c, c where a<b<c are
, 2, 2 respectively.^
- What is the sum of the squares of all
the six numbers?
(a) 40 (b) 42 (c) 45 (d) 48 - What is the value of c?
(a) 1 (b) 2 (c) 3 (d) 4 - What is the mode?
(a) 1 (b) 2 (c) 1, 2 and 4 (d) No mode
33. In the following frequency
distribution, class limits of some of the
class intervals and mid-value of a class
are missing. However, the mean of the
distribution is known to be 46.5:
Class
IntervalsMid-
ValuesFrequency15 10
30 40
M 30
75 10
90 10
The values , respectively
will be:
(a) (0, 20, 40, 60, 80) (b) (40, 50, 60,
70, 80) (c) (10, 20, 40, 70, 80) (d) (0,
19.5, 39.5, 69.5, 80)- The mean of 13 observations is 14.
If the mean of the first 7 observations is
12 and that of the last 7 observations is - What is the value of 7th
observations?
(a) 12 (b) 13 (c) 14 (d) 15