Question

For the UN grouped data 25,15,20,10,15,x,mean and mode are equal find value of x and mean

Answer 1

mode =15
But given mode = median =15
Relation between mode, median and mean is
Mode = 3 median-2 mean
15=3*15-2mean
15-45= -2mean
-30=-2mean
Mean =30/2
Mean =15
2)mean=(10+15+20+25+15+x)/6
15=(85+x)6
90=85+x
90-85=x
x=5