Question

If the mean of the following data is 18.6 determine the value of p

X | 15 | 16 | 19 | 20 | p |

f | 3 | 8 | 5 | 4 | 10|

Answer 1

X= 15, 16, 19, 20, p


f = 3, 8,5, 4 ,10


Table is in the attachment


∑fixi= 448+10p


∑fi= 30


Mean= ∑fixi/∑fi


Mean = 18.6 (given)


18.6 = (448+10p)/ 30


18.6× 30 = 448+ 10p


558 = 448 +10p


558- 448 = 10p


110 = 10p

P = 110 /10= 11


Hence, the value of P is 11



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Hope this will help you.... ...

Answer 2

Answer:

18

Step-by-step explanation:

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