Answer: just plug in the values it gives you and then it's simple addition and subtraction.
Step-by-step explanation:
Answer is 9
To get this answer, we replace h with 2, and replace r with 7. This is because h = 2 and r = 7 is given to us
So
h+r = 2+7 = 9
To the nearest whole percent the margin error for this poll would be <span>38% ⁺/₋ 14%. If you want me to explain feel free to ask! </span>
If an event has a probability P of happening, then there is a probability of (1-P) of the event not happening.
In this case the probability of the event is p=20/69.
Then, the probability of the event not happening is:

Answer: the probability of the event not happening is 49/69.
Answer:
It is 152
Step-by-step explanation:
I hope this helped