The probabilities of all possible outcomes in a distribution must sum to 1.

Answer:
A&C
Step-by-step explanation:
As, you said, the first answer is C. Now, we are given seven, and when we are adding a negative number, we move in the direction of left, and since we are moving by 7, we would be moving 7 to the left. Therefore, the other answer is A.
Answer:
4i√5
Step-by-step explanation:

Answer:
7/8 or in decimal form .87
Step-by-step explanation:
Answer:
son 14
Step-by-step explanation:
por que solo se resta para saber el numero de niños