BITSAT SERIES Mathematics
Statistics
15 previous year questions.
Volume: 15 Ques
Yield: Medium
High-Yield Trend
1
2023 1
2021 1
2020 2
2019 1
2018 1
2017 1
2016 3
2015 1
2013 3
2010 Chapter Questions 15 MCQs
01
PYQ 2010
medium
mathematics ID: bitsat-2
Mean of 25 observations was found to be 78.4. But later it was found that 96 was misread as
69. The correct mean is
1
79.24
2
79.48
3
80.10
4
None of these
02
PYQ 2010
medium
mathematics ID: bitsat-2
If the mean, mode and S.D. of a frequency distribution are 41.45 and 8 respectively, then its Pearson’s coefficient of skewness is
1
(1)/(3)
2
-(1)/(2)
3
(2)/(3)
4
1
03
PYQ 2010
medium
mathematics ID: bitsat-2
Mean of observations was found to be . But later on it was found that was misread . The correct mean is
1
79.24
2
79.48
3
80.1
4
None of these
04
PYQ 2013
medium
mathematics ID: bitsat-2
If the value of mode and mean is 60 and 66 respectively, then the value of median is
1
70
2
64
3
60
4
90
05
PYQ 2015
hard
mathematics ID: bitsat-2
The average age of 8 men is increased by 2 years when one of them whose age is 20 years is replaced by a new man. What is the age of the new man?
1
28 yr
2
36 yr
3
34 yr
4
35 yr
06
PYQ 2015
hard
mathematics ID: bitsat-2
The arithmetic mean of the data with frequencies is
1
2
3
4
07
PYQ 2015
medium
mathematics ID: bitsat-2
The arithmetic mean of the data with frequencies is
1
2
3
4
08
PYQ 2016
medium
mathematics ID: bitsat-2
The arithmetic mean of numbers a, b, c, d, e is M. What is the value of
(a-M)+(b-M)+(c-M)+(d-M)+(e-M)?
1
2
3
4
5M
09
PYQ 2017
medium
mathematics ID: bitsat-2
The marks obtained by 60 students are given. The median of the data is
1
68.33
2
70
3
68.11
4
None of these
10
PYQ 2018
medium
mathematics ID: bitsat-2
In a frequency distribution, the mean and median are 21 and 22 respectively. Then its mode is approximately:
1
25.5
2
24.0
3
22.0
4
20.5
11
PYQ 2019
medium
mathematics ID: bitsat-2
The average age of 8 men is increased by 2 years when one of them whose age is 20 yr is replaced by a new man. What is the age of the new man?
1
28 yr
2
36 yr
3
34 yr
4
35 yr
12
PYQ 2019
medium
mathematics ID: bitsat-2
The arithmetic mean of the data 0,1,2,…,n with frequencies 1,1,1,…,1 is
1
2
3
4
(n)/(2)
13
PYQ 2020
medium
mathematics ID: bitsat-2
The arithmetic mean of numbers a,b,c,d,e is M. What is the value of
(a-M)+(b-M)+(c-M)+(d-M)+(e-M)?
1
2
3
4
5M
14
PYQ 2021
medium
mathematics ID: bitsat-2
The marks obtained by 60 students in a certain test are given below:
Marks: 10–20, 20–30, 30–40, 40–50, 50–60, 60–70, 70–80, 80–90, 90–100
No. of students: 2, 3, 4, 5, 6, 12, 14, 10, 4
No. of students: 2, 3, 4, 5, 6, 12, 14, 10, 4
Median of the above data is
1
68.33
2
70
3
68.11
4
None of these
15
PYQ 2023
medium
mathematics ID: bitsat-2
Find the mean deviation about the mean for the data:
1
3
2
24
3
10
4
8