Question

The mean of 25,30,15,22,20,12,26,20,25, and x is 21. Then x =​

Answer 1

Answer:

Answer

3,25,28,25,16,23,17,22,25,25

Total no. of terms =10

Sum of data =23+25+28+25+16+23+17+22+25+25=229

Therefore,

Mean of given data =

10

229

=22.9

Now, since no. of terms is even.

Therefore,

Median of given data =

2

(

2

n

)

th

term +(

2

n

+1)

th

term

=

2

16+23

=

2

39

=19.5

Since 25 has occured most frequently in the given set of data.

Therefore,

Mode of data =25