Find the mean of the first 20 prime numbers
Answers
HEY THERE
HERE UR ANSWER
Simple definition of Mean :
Mean means we have to add all required numbers aand divide it by countings.
Formula for finding mean :
x¯ = ∑ x / N
To find it :
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71.
Calculating :
= 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 59 + 61 + 67 + 71.
= 639 .
According to formula :
→ x¯ = ∑ x / N
→ x¯ = ∑ 639 / 20
→ x¯ = ∑ 31 . 95 .
Hope this helps u
Be brainly
The mean of first 20 prime numbers is 31.95
Given:
20 prime numbers
To find:
Mean of 20 prime numbers
Solution:
Prime numbers are the type numbers that are not divisible with any other number other than 1 and itself.
The first 20 numbers that come under prime numbers are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71
The formula for mean is:
Mean = Sum of group of numbers
No of numbers in the group
Sum of group of numbers is:
2+3+5+7+11+13+17+19+23+29+31+37+41+43+47+53+59+61+67+71
= 639
No of numbers in the group:
20
Now substitute the values in the formula
Mean = 639
20
Mean = 31.95
Therefore the mean of first 20 prime numbers is 31.95
#SPJ3