Answer:
The coefficient of correlation=0.5
Step-by-step explanation:
We are given that
Covariance between the variable x and y=18
Variance of x=16
Variance of y=81
We have to find the coefficient of correlation
We know that
Coefficient of correlation
Using the formula
Hence, the coefficient of correlation=0.5
The last one i think is correct, hope i could help??
The three numbers are 23, 161, and 123.
Answer:
its true because 3(4a - 2) is 12a - 6
It would be 5 months until the price for the notebook computer would be the same. Here are the steps to solving the problem:
1. Step up the equation, 200 + 10x = 100 + 30x
2. Subtract 100 from both sides and Subtract 10 from both sides,
100 - 200 = 10x + 30x, 100 = 20x
3. Solve for x, 100/20 = 20x/20, x= 5
