Question

(2005)
11. Marks obtained by 40 students in a short assessment is given below, where a and b are
two missing data :
Marks
5
6
7
8
9
No. of students
6
а
16
13
b
If the mean of the distribution is 7.2, find a and b.
(2012)
plzzz guys help me and plzzz dont spam​

Answer 1

Answer:

a=1

b=0

Step-by-step explanation:

HOPE IT HELPS,

PLEASE THANK , FOLLOW AND MARK AS BRAINLIEST.

Answer 2

Answer:

A=1

B=0

Step-by-step explanation:

mark as brainliest