Question

the mean of 20 ,8,12,13,15andp is 30find the vale of p​

Answer 1

ⓢⓞⓛⓤⓣⓘⓞⓝ

we know that mean of a data series is the average of the numbers of the data set .

like mean or average of 1,2,3 is 1+2+3/3=6/3=2

mean of 20,8,12,13,15 and p is 30

therefore,p =20+8+12+13+15+p/6=30

or,68+p/6=30

or,68+p=180

or,p=180-68

or,P=112

therefore the data set is 20,8,12,13,15,112