CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Look at the following table below.
Class IntervalClass mark06a612b121815182121
The missing class marks a and b are respectively ____.


  1. 4, 9

  2. 4, 7

  3. 3, 9

  4. 2, 2


Solution

The correct option is C

3, 9


Class mark for a class interval is given by
Class mark=Upper class limit+Lower class limit2
For  the 1st class interval , a=0+62=62=3.
For the 2nd class interval, b=6+122=182=9.

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More



footer-image