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Ratling [72]
3 years ago
9

A machine needs two of its gears replaced. You find two gears, one manufactured 5 years ago and the other manufactured 10 years

ago. The specification sheet says that the chance of gear failure is 5% after 5 years and increases to 8% after 10 years.
If the gears on the machine are not linked to each other, the probability that both replacement gears will fail is %.
Mathematics
2 answers:
Mazyrski [523]3 years ago
7 0
<span>A machine needs 2 of its gears replaced. You find 2 gears, one manufactured 5 years ago and the other manufactured 10 years ago. The specifications sheet says that the chance of failure is 5% after 5 years and increases to 8% after 10 years. If the gears on the machine are in no way linked to each other, what are the chances that both will fail? Answer in % form. 
-----------------------------
P(both fail) = 0.05*0.08 = 0.004 = 0.4%</span>
Lana71 [14]3 years ago
7 0

Answer:

I got 0.4% on edmentum :D

Step-by-step explanation:

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Pavel [41]

Answer:

(A) There should have been 5 outcomes of HT

(B) The experimental probability is greater than the theoretical probability of HT.

Step-by-step explanation:

Given

S = \{HH,HT,TH,TT\} -- Sample Space

n(S) = 4 --- Sample Size

Solving (a); theoretical outcome of HT in 20 tosses

First, calculate the theoretical probability of HT

P(HT) = \frac{n(HT)}{n(S)}

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<em></em>

Solving (b); experimental probability of HT

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6 0
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