Answer:
a. In excess of .95
Explanation:
Waygate's residential internet modem works well but is sensitive to power-line fluctuations. On average, this product hangs up and needs resetting every 200 hours. On average about 45 minutes is needed to reset this product. What is this product's availability? In excess of 0.95
MTBF is 200 and MTTR is 0.75. This will leads to an availability of 0.996, so option a is the correct answer
a. In excess of .95
b.In excess of .8 but not in excess of .9
c.Not in excess of .75
d.In excess of .75 but not in excess of .8
e. In excess of .9 but not in excess of .95
