Ummm i don't know what the pmf would be but the probability of grabbing a blue sock would be 10 out of 100...
She gets $2.75 back if that’s what you’re asking.
We know that 100paise=1 rupee
=>500 paise = 5 rs
ratio =5/20=1/4=1:4
hope it helps :)
plz mark as brainliest
QUESTION 1
Given that:
,
,
and

Then;


Group similar terms;

Simplify;

QUESTION 2
Given that;
.

and

Substitute the functions;

Substitute x=3




QUESTION 3
Given:


This implies that;

Expand the parenthesis;


QUESTION 4
The given function is;

Let





The range is:



The interval notation is;
