Question

Length of class interval 90-99 is​

Answer 1

Length of class interval 90-99 is​ 9 or 10 depending upon Class interval method

Step-by-step explanation:

Information Provided is not sufficient

Class interval  = Range / Number of classes

If Classes are exclusive

like other classes are

81 - 90

99 - 108

The Length of class interval  = 99 - 90 = 9

if classes are inclusive

like other classes would be

80 - 89

100 - 109

then Length of class interval  = 10

Learn more:

Construct class intervals and frequencies for the following ...

https://brainly.in/question/13192074