Question

Find the missing Frequerey mean is given 35
x= 10, 20, 30, 40, 50, 60
f= 4, 6, 9, f ,7 ,3​

Answer 1

Check it once more if you're not sure about the answer☑️

Answer 2

Answer:

-23

Step-by-step explanation:

• MEAN = sum of x/ sum of f
• given mean =35

so here,

sum of x = 10+20+30+40+50+60

= 210

sum of f = 4+6+9+f+7+3

=29+f

now substituting the values in equation,

MEAN = sum of x/ sum of f

$35 = \frac{210}{29 + f}$

on cross multiplying,

$35(29 + f) = 210$

$1015 + 35f = 210$

$35f = 210 - 1015$

$f = \frac{ - 805}{35} \\ = - 23$

and that's the answer you are looking for..