Question

find the solution of the given data fast.​

Answer 1

Answer:

(i) 15

(ii) Upper Limit - 35

    Lower Limit - 30

(iii) 47.5

(iv) 5

Step-by-step explanation:

(i)

First class interval is 15 - 20.

Lower limit is the lowest value that can be grouped in this class.

∴ Lower limit is 15.

(ii)

Fourth class interval is 30 - 35.

Limits are the lowest and highest and lowest values that can be grouped in this class.

∴ Lower limit is 30.

  Upper limit is 35.

(iii)

Class mark $=$ $\frac{Upper Limit + Lower limit}{2}$

                  $= \frac{50 + 45}{2}$

                  $= \frac{95}{2}$

                  $= 47.5$

(iv)

Let us take the first class interval.

Class size = Upper limit - Lower limit

                 = 20 - 15

                 = 5

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