Answer:
8y-15
Step-by-step explanation:
-y-3(-3y+5)
-y+9y-15
8y-15
Answer:

Step-by-step explanation:
Given
See attachment for complete question
Required

From the attachment, we have:

---- the sample size
Next, we list out all outcomes more than or equal to 5.
i.e.

5 is represented with the vertical blue rectangle (with frequency 21).
So, the other elements are to the right of frequency 21.
So, we have:


The probability is then calculated as:

This gives


So u just do 27*0.45 to get 12.15 and subtract that to get 14.85