Question

class interval 1-10 , 10-20, 20- 30, 30- 40, 40-50 frequancy 7, 10 8, 15, 10 find the mean of this i will chose the brainlist.

Answer 1

Step-by-step explanation:

7,10,8,15,10

_________ = 7+10+8+15+10

5 __________ = 50

5 ---- = 10

5

Answer 2

firstly,we put formula of mean,

$mean = \frac{sum \: of \: terms}{number \: of \: terms}$

$= \frac{7 + 10 + 8 + 15 + 10}{5}$

$= \frac{50}{5}$

$= 10$

$mean = 10$

sum of terms means: number of frequency.

number of terms means:total number of frequency.