Note that when rounding, if the number is:
5 or greater, round up
4 or less, round down
43.68532 rounded to the nearest dollar is 44, as 6 rounds up
$44 is your answer
hope this helps
Answer:
0.9999
Step-by-step explanation:
Let X be the random variable that measures the time that a switch will survive.
If X has an exponential distribution with an average life β=44, then the probability that a switch will survive less than n years is given by
So, the probability that a switch fails in the first year is
Now we have 100 of these switches installed in different systems, and let Y be the random variable that measures the the probability that exactly k switches will fail in the first year.
Y can be modeled with a binomial distribution where the probability of “success” (failure of a switch) equals 0.0225 and
where
equals combinations of 100 taken k at a time.
The probability that at most 15 fail during the first year is
The answer is A. -8
(step by step)
Do multiplication first. 7 * -8 = -56
Now subtraction. -56 - (-8) = -48
Hope this helped! ☺♥
It will be 1 because your multiplying it by 0
X=8 is a vertical line....so a parallel line is also vertical, the vertical line will be at the x coordinate of the point we wish to pass through...
x=-3