Question

In the classes 0-9, 10-19, 20- 29. the upper boundary of the class 10-19 is
a) 19
b) 19.5
c) 20
d) 20.5
​

Answer 1

Answer:

19

Step-by-step explanation:

Upper boundary of a class is the maximum value upto which values are included in that class.

Answer 2

a) 19

The upper boundary of the class 10-19 is  19.

Explanation:

• A class interval describes a range of values that are limited by some lower and upper points such that the span of each interval is the same.

For example in a class interval of a-b , a= lower limit and b= upper limit.

For the class 10-19 , the lower limit = 10

And the upper limit = 19

Hence, the  upper boundary of the class 10-19 is 19.

Thus , the correct answer is a) 19

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