List of top Mathematics Questions on Statistics asked in BITSAT

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
Median of the above data is
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)?
The arithmetic mean of the data 0,1,2,…,n with frequencies 1,1,1,…,1 is
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?
In a frequency distribution, the mean and median are 21 and 22 respectively. Then its mode is approximately:
The marks obtained by 60 students are given. The median of the data is
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)?
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?
The arithmetic mean of the data \(0,1,2,\ldots,n\) with frequencies \(1,{}^nC_1,{}^nC_2,\ldots,{}^nC_n\) is
If the value of mode and mean is 60 and 66 respectively, then the value of median is
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
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