Question

somebody please solve this question please please please please please please please please please please please please please please please please please please please please please please please please please please please please

Answer 1

Heya mate,

Here is your answer,. ⬇️⬇️

${ANSWER :-}$
_______________


$<i>$ Here, we have as follows,

(11 - 13) : 3 : [ 3*(11+13)/2 = 3*12 = 36]
(13-15) : 6 : 84
(15-17) : 9 : 144
(17-19) : 13 : 234
(19-21) : k : 20k
(21-23) : 5 : 110
(23-25) : 4 : 96

_ _ _ _ _ _ _ _ _ _


Now, given mean = 18

So, by condition, we have,

(36+84+144+234+20k+110+96) / (3+6+9+13+k+5+4) = 18

=> ( 704 + 20k) = 18 * ( 40+k)

=> 704 + 20k = 720 + 18k

=> 20k - 18k = 720 - 704 = 16

=> k = 16/2 = 8.

_ _ _ _ _ _ _ _ _ _ _


➡️ Hence, the missing frequency k is 8.

________________

$<b>$Hope this helps,.

If helps, please mark it as brainliest ^_^

________________


REGARDS, ARNAB ✌️

THANK YOU