Question

5.
Marks of 15 students were as follows.
25. 30, 35, 20, 40, 48, 30, 25, 30, 20, 30, 45, 30, 40, X.
If the mean of the marks is 32, find x.
i) Find the mean pocket money.
ii) Find the median and mode.​

Answer 1

Answer:

x=32

Step-by-step explanation:

mean= sum of all observations÷total observations

=25. 30, 35, 20, 40, 48, 30, 25, 30, 20, 30, 45, 30, 40, X.÷15

32= 448+x÷15

32×15=448+x

x=480-448

x=32