Two hours step broooooooooooo
we know that
<u>The correlation coefficient</u> is a number between
and
that represent the linear dependence of two variables or sets of data
Using the function CORREL in a excel tool, calculate the correlation coefficient (r)
see the attached table
the correlation coefficient for the data in the table is equal to 
therefore
<u>the answer is</u>

25% of 84 is 21
21 divided by 25%=84
Answer:
9 out of 16 chances three red marbles are gonna come out
1 lb = 16 ounces
Paid amount
= [(0.69 cents) / (16 ounces)] × (5 ounces)
= 0.215625 cents