Question

If the mean of 10, 12, 18, 13, P and 17 is 15, find the value of P.​

Answer 1

Given,

A set of 6 numbers: 10, 12, 18, 13, P and 17

The mean of the given set of numbers is equal to 15

To find,

The value of P.

Solution,

We can simply solve this mathematical problem using the following process:

Mathematically,

Average/mean of a set of numbers

= sum of all the numbers/total number

Now, according to the question;

The mean of the given set of numbers = 15

=> (10+12+18+13+P+17)/6 = 15

=> 70 + P = 15 × 6 = 90

=> P = 90-70

=> P = 20

Hence, the value of P is equal to 20.

Answer 2

Answer:

If the mean of 10, 12, 18, 13, P and 17 is 15, then the value of P is 20.​

Step-by-step explanation:

Mean is the most common representative value of data. It values between the maximum and minimum observation of data.

Given: Given numbers =  10, 12, 18, 13, P and 17

Mean = 15

Find the value of P.

Mean= Sum of observations/Number of observations

15 = (10 + 12 + 18 + 13+ P+ 17)/6

15 =(70 + P)/6

70 + p = 90

p = 90 - 70

P = 20

So, value of P is 20.