Skip to content
Philoid
Browse Saved
Back to chapter
Maths
32. Statistics
Home · Class 11 · Maths · Ref. Book · 32. Statistics
Prev
Next
Q5 of 108 Page 32

Calculate the mean, median and standard deviation of the following distribution

Given, The data is given in table/

To Find: Find the standard deviation


The formula used: SD =


Explanation:



Now, N=50, ,


Mean






Variance = 58


Standard Deviation


SD = 7.62


Hence, The standard deviation is 7.62


More from this chapter

All 108 →
3

Calculate the A.M. and S.D. for the following distribution:

4

A student obtained the mean and standard deviation of 100 observations as 40 and 5.1 respectively. It was later found that one observation was wrongly copied as 50, the correct figure is 40. Find the correct mean and S.D.

6

Find the mean and variance of frequency distribution given below:

7

The weight of coffee in 70 jars is shown in the following table:


Determine the variance and standard deviation of the above distribution.

Questions · 108
32. Statistics
1 1 1 1 1 2 2 2 2 2 3 4 5 1 2 3 4 4 4 4 4 5 5 5 1 2 2 2 3 4 5 6 7 8 1 1 1 1 2 3 4 5 6 7 8 9 10 11 1 2 3 3 4 4 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved