Question

3. What is the mean of first five prime numbers?
b) 3.6
c) 5.6
d) 6.5​

Answer 1

Answer: mean=19.2

Step-by-step explanation:

The first five prime numbers are 2,3,5,7,11

Mean = sum of observations/no.of observations

Sum of obsevations=2+3+5+7+11= 28

No.of observations= 5

Mean =28/5

Mean =19.2

Answer 2

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

❥$\huge\bold{\mathscr{\underline{\underline{\pink{Question}}}}}$

➡ What is the mean of first five prime numbers?

a) 4.2

b) 3.6

c) 5.6

d) 6.5

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

❥$\huge\bold{\mathscr{\underline{\underline{\pink{Answer}}}}}$

☯ First Five Prime Numbers = 2, 3, 5, 7 and 11 .

$\bold{\green{\boxed{\boxed{\sf{\orange{Mean\:=\: \dfrac{Sum\:of\:observations}{Number\:of\:observations}}}}}}}$ $\red\bigstar$

$\sf Now , Mean\:=\: \dfrac{2+3+5+7+11}{5}$

$\sf \:\:\:\:\:\:\:\:\:\:\:Mean\:=\: \dfrac{28}{5}$

$\sf \:\:\:\:\:\:\:\:\:\:\:Mean\:=\: 5.6$

★ Therefore , mean of first five prime numbers is 5.6 .

${\red\bigstar\large\bold{\mathrm{\underline{\green{Option\:C\:is\:Correct\:i.e.\:5.6}}}}}$

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬