You would take 320 and multiply it by .60 and you would get 192. So the answer is B) $192.
-1/2 ans. Hope it helps..
Answer:
B -0.104
Step-by-step explanation:
Step 1: Write the formula for correlation
r = total xy
√Total x² x Total y²
Step 2: Make a table to calculate all values
Table is attached in the picture below
Step 3 : Solve
Mean of X = Total X/ Total number of X
= 507/12
= 106.33
Mean of Y = Total Y/ Total number of Y
= 1276/ 12
= 42.25
r = total xy
√Total x² x Total y²
r = -352.05/ √3656.25 x 3122.66698
r = -0.104
-0.104 is negative
This negative correlation means there is an inverse correlation between variables.
<span>(a/20)+(4/15)=(9/15)
a/20 = </span>(9/15)-<span>(4/15)
</span><span>a/20 =5/15
</span><span>a/20 =1/3
a=20/3
</span>