Question

Find the mean of 50 ​

Answer 1

Step-by-step explanation:

a number equal to 5 times 10 is 50

Answer 2

28 and 24

 X 1030 50 70 90  F 175α+3 32 7α−11 19 Mean = ∑fi∑fixi=50

50=17+5α+3+32+7α−11+1910×17+30(5α+3)+50×32+70(7α−11)+90×19

50(12α+60)=640α+2800

3000+600α=640α+2800

40α=200

α=5

frequency of 30=5α+3=25+3=28

frequency of 70=7α−11=35−11=24.