Step-by-step explanation:
vol =πr²h
22/7×8×8×3
= 603.2
23 since the pattern rules is that we subtract by 3 each time
Simplify to -30-35y=-30-5y
Move all ys to the right and move constants left, -30y= 0
Divide by -30
y=0
Answer:
A
Step-by-step explanation:
The expected value of the discrete distribution is of 20.97, hence option C gives the correct answer.
<h3>What is the mean of a discrete distribution?</h3>
The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability.</u>
Hence, according to the table, the expected value is given by:
E(X) = 12 x 0.08 + 18 x 0.15 + 20 x 0.31 + 22 x 0.08 + 24 x 0.15 + 25 x 0.23 = 20.97.
More can be learned about the expected value of a discrete distribution at brainly.com/question/26660401
#SPJ1
