C. Divide the previous value by 5
We have that
set of data [<span>8, 12, 15, 17, 18]
step 1
Find the mean
</span>[8+ 12 + 15 + 17 + 18]/5-------> 70/5------> 14
step 2
for each number: subtract the Mean and square the result
(8-14)²----->36
(12-14)²----> 4
(15-14)²----> 1
(17-14)²----> 9
(18-14)²----> 16
step 3
<span> work out the mean of those squared differences
[36+4+1+9+16]/5-----> 66/5-----> 13.2----> </span><span>this value is called the "Variance"
step 4
</span><span>Take the square root of that
</span>standard desviation=√13.2-----> 3.63-------> 4
the answer is
4
Answer:
B. Between x 2 and x 3
Step-by-step explanation:
We let
x as the bushels of apples used to make apple cider
y as the bushels of apples used to make apple juice
The system of equations is
x + y = 18
20x + 15y = 330
Solving for x and y
x = 12
y = 6
12 bushels of apples are needed to produce apple cider
6 bushels of apples are needed to produce apple juice<span />
9/3 is 3
so then its proportionate to 14/3 which would be 4.7
Answer is 4.7
