## RS Aggarwal Solutions Chapter 14 Statistics Ex 14F in PDF for Free Download

Contents

**Question 1.****Find the mean of daily wages of 60 workers in a factory as per data given below :****Solution:**

**Question 2.****The following table shows the weights of 12 workers in a factory :****Solution:**

**Question 3.****The following data given the number of boys of a particular age in a class of 40 students.****Calculate the mean age of the students.****Solution:**

**Question 4.****Find the mean of the following frequency distribution :****Solution:**

**Question 5.****If the mean of the following frequency distribution is 8, find the value of p.****Solution:**

Mean = 8

**Question 6.****Find the missing frequency p for the following frequency distribution whose mean is 28.25.****Solution:**

Mean = 28.25

**Question 7.****Find the value of p for the following frequency distribution whose mean is 16.6.****Solution:**

Mean = 16.6

**Question 8.****Find the missing frequencies in the following frequency distribution, whose mean is 50.****Solution:**

Mean = 50

**Question 9.****Use the assumed-mean method to find the mean weekly wages from the data given below:****Solution:**

**Question 10.****Use the assumed-mean method to find the mean height of the plants from the following frequency-distribution table:****Solution:**

Let assumed mean = 67

**Question 11.****Use the step-deviation method to find the arithmetic mean from the following data.****Solution:**

Here h = 1, Let assumed mean (A) = 21

**Question 12.****The table given below gives the distribution of villages and their heights from the sea level in a certain region****Compute the mean height, using the step-deviation method.****Solution:**

Here h = 400 and let assumed mean (A) = 1000

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