Answer:
(e) 0.75
Step-by-step explanation:
The correlation coefficient is not affected by translation or scaling of scores. Converting them from "raw scores" to z-scores does not affect their correlation.
The correlation coefficient of the z-scores is 0.75.
Answer:
9 and 5.
Step-by-step explanation:
So we have the expression:

In order to combine like terms, the variables must be <em>exactly</em> the same: not one less, not one more.
3x²y and 2x² <em>cannot</em> be combined because the first value has a y.
7x², 3x²y, and 2x² also <em>cannot </em>be combined because the second value has a y.
9 and 5 is the only one that can be combined because they are just integers. They can be added to be 14.
2, 3, 5, and 9 <em>cannot</em> be combined because the 2 and the 3 are tied to the variables as coefficients. They are not constants.
The common denominator is (x+2)(x-2)
notice that x²-4 is the difference of two square
when you solve it you get (x+2)(x-2). (x+2) can go into (x+2)(x-2).
Use formula for theoretical probability:

1. The probability that Jonas will get an orange is

2. Ben is taking a piece second and he has 12 piecies left, among them 5 apples, 4 oranges and 3 bananas. The probability that Ben will get an apple is

3. Use the product rule to determine

Answer: correct choice is A.