## RS Aggarwal Solutions Class 10 Chapter 9 Mean, Median, Mode of Grouped Data, Cumulative Frequency Graph and O give Ex 9a

These Solutions are part of RS Aggarwal Solutions Class 10. Here we have given RS Aggarwal Solutions Class 10 Chapter 9 Mean, Median, Mode of Grouped Data,Cumulative Frequency Graph and O give Ex 9a.

Other Exercises

Question 1.
Solution: Question 2.
Solution: Question 3.
Solution: Question 4.
Solution:
We have  Question 5.
Solution:
We have Question 6.
Solution:
We have Question 7.
Solution: Question 8.
Solution: Question 9.
Solution: Question 10.
Solution: Question 11.
Solution: Question 12.
Solution: Question 13.
Solution:
We have
7+f1+12+f2+8+5=50 ⇒ f2= 18-f1  Question 14.
Solution: Question 15.
Solution:
We have, Let A = 25 be the assumed mean Hence mean = 28.

Question 16.
Solution:
Let the assumed mean be 150, h = 20 Hence, Mean = 146.25.

Question 17.
Solution:
Let A = 50 be the assumed mean, we have Question 18.
Solution: Question 19.
Solution: Question 20.
Solution: Question 21.
Solution: Question 22.
Solution: Question 23.
Solution: Question 24.
Solution: Question 25.
Solution:
Let h = 20 and assume mean = 550, we prepare the table given below:  Hence the mean of the frequency distribution is 544.

Question 26.
Solution:
The given series is an inclusive series, making it an exclusive series, we have  Question 27.
Solution:
The given series is an inclusive series making it an exclusive series,we get  Hence, Mean = 34.87 years.

Question 28.
Solution: Question 29.
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