Answer:
Step-by-step explanation:
Using the probability concept, we have that:
a) It would not be unusual to observe one component fail, since the probability that one component fails is greater than 0.05.
b) It would be unusual to observe two components fail, since the probability that two components fail is less than 0.05.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>. If a probability is less than 0.05, the event is considered unusual.
In this problem, the probabilities are given as follows:
- 0.21 probability that one component fails, hence not unusual.
- (0.21)² = 0.0441 probability that two components fail, hence unusual.
More can be learned about probabilities at brainly.com/question/14398287
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The 3rd selection is appropriate.
Answer:
BD= 2 x 1 CA= 1 x 2 BC= 2 x 3
Step-by-step explanation:
Answer:
x = 4/3; y = 11/3
Step-by-step explanation:
y = -x + 5 and 5x + 2y = 14
Since the first equation is already solved for y, we can use the substitution method.
Substitute y of the second equation with -x + 5.
5x + 2y = 14
5x + 2(-x + 5) = 14
5x - 2x + 10 = 14
3x + 10 = 14
3x = 4
x = 4/3
Now we substitute x of the first equation with 4/3 and solve for y.
y = -x + 5
y = -4/3 + 5
y = -4/3 + 15/3
y = 11/3
Solution: x = 4/3; y = 11/3
