Answer:
Asnwer is A
Step-by-step explanation:
since the correlation between the FFQ and DR is 0.89
x y xy 
8.26 1.68 13.8768 68. 2276 2.8224
0.83 0 0 06889 0
20.13 15.1 303.963 405.2169 228.01
11.16 7.49 83.5884 124.5456 56.1001
7.18 12.84 92.1912 51.5524 164.8656
1.76 0 0 3.0976 0
22.46 25.06 567.8596 513.4756 628.0036
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∑
= ∑
= ∑
= ∑
= ∑
=
71.98 62.17 1061.479 1166.8046 1079.8017
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Correlation Coefficient or Pearson Correlation is given by:
the rest calculation is in the attached image
Answer:
y=1/2x-2
Step-by-step explanation:
1. Find slop by subtracting y values over subtracting x values, which will get you the m value
-1+3 / 2+2 = 1/2
Answer: 42
Step-by-step explanation:
if the bookstore has 64 copies,
yesterday it was sold 1/4 , so it was sold 64/4=16
today it was sold 1/8 from what remained, which is 6(see below)
64-16=48
48/8=6
the store has left 48-6=42
18y + 9 = -12 + 18y
9=-12
I hope that’s right... I haven’t done this in ages
Answer:
{5, 7, 9, 11}
Step-by-step explanation:
Roster form just means list the elements of the set in the brackets.
It says the elements are greater than or equal to five and less than or equal to 11. So we start at 5 and end at 11.
We list {5, 7, 9, 11} because these elements follow the rule that they must be odd natural numbers. Natural numbers are the numbers you can count starting from 0 like {0, 1, 2, 3, ...}.
