Exercise 5.2
1. Using graphic method, find the value ofywhenx= 48 from the following data:
2. The following data relates to indirect labour expenses and the level of output
Estimate the expenses at a level of output of 350 units, by using graphic method.
3. Using Newton’s forward interpolation formula find the cubic polynomial.
4. The population of a city in a census taken once in 10 years is given below.
Estimate the population in the year 1955.
5. In an examination the number of candidates who secured marks between certain
intervals were as follows:
Estimate the number of candidates whose marks are less than 70.
6. Find the value offxwhenx32 from the following table
