Question

. The average of all prime numbers from 10 to 30 is?

Answer 1

NumberS BetweenN 10 TO 30 Are =11,13,17,19,23,29

Average =Sum Of Observation/Number OF ObservationS

= 11+13+17+19+23+29/6

= 87.8333.....}

Prime nmbers are the numbers that are divisble by only 1 and Itself.

Average also called mean .

Composite numbers are just opposite to the prime numbers (they are divisible by many of the numbers).

Answer 2

The average of all prime numbers from 10 to 30 is 18.67

Given :

All prime numbers from 10 to 30

To find :

The average of all prime numbers from 10 to 30

Solution :

Step 1 of 2 :

Calculate Sum of the numbers

All prime numbers from 10 to 30 are 11 , 13 , 17 , 19 , 23 , 29

Number of terms = 6

Sum of the numbers

= 11 + 13 + 17 + 19 + 23 + 29

= 112

Step 2 of 2 :

Calculate the average

The required average of all prime numbers from 10 to 30

$\displaystyle \sf{ = \frac{Sum \: of \: the \: numbers}{Number \: of \: terms} }$

$\displaystyle \sf{ = \frac{112}{6} }$

$\displaystyle \sf{ \approx 18.67}$

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