Construct a frequency table for the following weights (in gm) of … - Vidyadip

Question

Construct a frequency table for the following weights (in gm) of 35 mangoes using the equal class intervals, one of them is 40-50 (45 not included):
30, 40, 45, 32, 43, 50, 55, 62, 70, 70, 61, 62, 53, 52, 50, 42, 35, 37, 53, 55, 65, 70, 73, 74, 45, 46, 58, 59, 60, 62, 74, 34, 35, 70, 68.

What is the class mark of the class interval 40-45?
What is the range of the above weights?
How many classes are there?

✓

Answer

The frequency table for the given weights (in gm) of 35 mangoes is given below:

Class mark for the class interval 40-45:

Class mark $=\frac{40+45}{2}=\frac{85}{2}=42.5$

Range of the above weights:

Range = Highest value - Lowest value

= 74 - 30

= 44

There are 5 classes (30-40, 40-50, 50-60, 60-70, 70-80).

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