Question

A nutritionist need to study the daily protein intake of a client (during 3 week period), present in different food items and the data collected by him is as follows:

32, 21, 12, 43, 16, 48, 56, 24, 40, 45, 34, 11, 43, 33, 25, 34, 55, 32, 22, 20, 42

1. making 6 class intervals for the range, the length of each interval would approximately be.
a. 10
b. 8
c. 5
d. 4

Answer 1

Answer:

8

Explanation:

(Largest Value-Smallest Value)/Total no. of Class

Largest Value=56 & Smallest Value=11 Find Making 6 Class i.e. Total no of Class

=(56-11)/6=7.5 round figure=8 Ans

Answer 2

Given:

the data collected by the nutritionist is as follows:

32, 21, 12, 43, 16, 48, 56, 24, 40, 45, 34, 11, 43, 33, 25, 34, 55, 32, 22, 20, 42

To Find:

Making 6 class intervals for the range, the length of each interval would approximately be ?

Solution:

In order to find length of each interval, we should know the largest and the smallest value present in the data set.

So,

Largest Value=56

Smallest Value=11

We know that we have to make 6 class intervals.

So,

Length of each interval = (Largest Value - Smallest Value) / Total no. of Class

                                        = (56 - 11) / 6 = 7.5 = 8 (approximately)

Hence, the length of each interval would approximately be 8.