Solution: We are required to find the correlation between x and y here:
The formula for correlation is:
![r=\frac{n\sum x y- \sum x \sum y}{\sqrt{[n\sum x^{2}-(\sum x)^2][n\sum y^{2}-(\sum y)^2]}}](https://tex.z-dn.net/?f=r%3D%5Cfrac%7Bn%5Csum%20x%20y-%20%5Csum%20x%20%5Csum%20y%7D%7B%5Csqrt%7B%5Bn%5Csum%20x%5E%7B2%7D-%28%5Csum%20x%29%5E2%5D%5Bn%5Csum%20y%5E%7B2%7D-%28%5Csum%20y%29%5E2%5D%7D%7D)
![=\frac{6\times 159- 31 \times 18}{\sqrt{[6 \times 203-(31)^2][6 \times 258-(18)^2]}}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B6%5Ctimes%20159-%2031%20%5Ctimes%2018%7D%7B%5Csqrt%7B%5B6%20%5Ctimes%20203-%2831%29%5E2%5D%5B6%20%5Ctimes%20258-%2818%29%5E2%5D%7D%7D)
Hence the option A. 0.7061 is correct
Answer:7.875 or 7 7/8
Step-by-step explanation:
Answer:
its a 1/6 chance
Step-by-step explanation:
each face has a 1/6 chance of being rolled since there are 6 faces
Answer:
The 2 pound bag of gummy bears
Step-by-step explanation:
You do 1.5/4.35 which = 2.9 the 2.9 is $2.90 per pound
Then, you do 5.3/2 which = 2.6 this 2.6 is $2.60 per pound
$2.60 < $2.90 there for the 2 pound bag of gummy bears is the better deal
Answer:
a) e
b) c
c) a
Step-by-step explanation: Look at the number line. 0 shows that it has no probability while C is at 1/2 showing that it could be half-half. Then you can see one under E which means it is bound to happen.
