Answer:
13x
Step-by-step explanation:
The product of 13 and x would be 13*x or just simply 13x.
The probability of it is 2/5
Answer:
0.7026
Step-by-step explanation:
Let X denote the lifetime of light bulb. Given
where the mean is
.
Recall that,


Answer:
Just to be on the safe side the first #1 is 31.5 and the second #1 is 57.82