Temperature Range (°F) At Least One O-Ring Failure No O-Ring Failures 51-55
0
56-60
2
0
61-65
1
0
66-70
2
8
71-75
1
3
76-80
0
4
81-85
0
1
Question 2
Based on the data collected from 23 flights, what is the probability of at least one O-ring failing, regardless of temperature?
(Note: This probability is called an experimental probability because it's based on only 23 flights, which is a fairly small number of events. To get a
better approximation of the actual probability, we would need data from many more flights. Note also that even though there was O-ring failure
on seven flights, all of those shuttles returned safely.)