Answer: C
Step-by-step explanation: for those who are on Enginuity 2021 there is a chart and the person above me is refering to C
Answer:

Step-by-step explanation:
Given
--- rate of hard disk drives failure
--- number of hard disk drives
<em>See comment for complete question</em>
Required

First, calculate the probability that the none of the 4 selected is working;



Using the complement rule, the probability that at least 1 is working is:

This gives:


Answer:
No
Step-by-step explanation:
Hi Barnesmy
101, 99, and 20 are measurements of right triangles.
Answer: A) True or the first option.