Question

4. Pallavi read the following number of pages of her favourite novel each night before going to bed: 10, 20, 10,20,40,10,10,20,30.
.what is the mean number of pages that she read every night?​

Answer 1

Step-by-step explanation:

Pages = 10,20,10,20,40,10,10,20,30

No.of pages = 9

Mean =

$\frac{ \:total \: sum \: of \: observations \: }{no \: of \: observations}$

Mean =

$\frac{10 + 20 + 10 + 20 + 40 +10 + 10 + 20 + 30}{9}$

=> 170/9 = 18.8888888888888

Answer 2

Answer:

18.88

Step-by-step explanation:

Mean=Total sum of observation