Answer:
m = 1.8
Step-by-step explanation:
Given data is as follows :
x 1 2 3 4 5 6
f 1 4 7 m 6 3
We need to find the value of m if the mean of the data is 3.8.
Mean = sum of observations/no. of observations
So,

So, the value of m is equal to 1.8.
He maybe accidently added both of thm .
But if we difference we get 7.
Because - and - =+
So
-11+4=7.
Answer:
I think d
Step-by-step explanation:
.....................
20:20 since the number of boy is even to the girls
Step-by-step explanation:
let x be the original.price
so x * 75/100= 14625
x=19500
so the price of car before it was reduced was 19500