Answer:
A. False
B. False
C. False
D. True
Step-by-step explanation:
A. False
Remember that E[aX+b] = aE[X] + b, therefore the equality would be true only if E[X] = 1.
B. False
Remember that .
C. False
In other words they are telling you in words that , that is false because
D. True
That is a property of the expected value E[X+b] = E[X]+b
X-2 = 0
X = 2
The first one equals 16
Second equals 0, so that is correct
Third equals 0, so that is correct
Fourth equals -2, so that is wrong
Answer:
Step-by-step explanation:
Let the number be x
<u>Four times a # added to -7:</u>
<u>Sum of four times the # and 6:</u>
<u>Subtracted from twice the Sum:</u>
- 2(4x + 6) - (4x - 7) =
- 8x + 12 - 4x + 7 =
- 4x + 19
Answer:5
Step-by-step explanation:
Since the input value of x is 2, the function at x=2 should be 10/2 or 5.