Question

marks of 10 students in a class were as follows. 25,30,15,22,20,12,20,26,25 and p. if the mean of the mean of the marks is 21 ,find P​

Answer 1

Answer:

P=0.01

Step-by-step explanation:

In context to the question it is asked to find the value of  P

Following data is given as follows

Numbers =25,30,15,22,20,12,20,26,25 and p.

Mean=21

We need to find  one of the number as (P)

As per the definition of mean

The mean is the mathematical average of a set of two or more numbers. · The arithmetic mean and the geometric mean are two types of mean that can be calculated.

So by putting into the formula we get the value of P

$21=\frac{25+30+15+22+20+12+20+26+25+ P}{10}$

$21=\frac{195P}{10} \\195P=\frac{21}{10} \\195P=2.1\\P=\frac{2.1}{195} \\P=0.01$

Hence value of P= 0.01