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Andrei [34K]
2 years ago
8

HELP PLEASE!!!!!!!:(

Mathematics
1 answer:
NemiM [27]2 years ago
3 0

Answer:

D

Step-by-step explanation:

\frac{1}{2} = \frac{7}{14} \\

\frac{1}{7}  = \frac{2}{14}

\frac{7}{14}  + \frac{2}{14}  = \frac{9}{14}

5+2=7

7 + \frac{9}{14}  = 7 \frac{9}{14}

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Answer:

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Step-by-step explanation:

Given that:

Probability of DVD player breaking down before the warranty expires = 0.034

To find:

The probability that the player will not break down before the warranty expires = ?

Solution:

Here, The two events are:

1. The DVD player breaks down before the warranty gets expired.

2. The DVD player breaks down after the warranty gets expired

In other words, the 2nd event can be stated as:

The DVD does not break down before the warranty gets expired.

The two events here, have nothing in common i.e. they are mutually exclusive events.

So, Sum of their probabilities will be equal to 1.

\bold{P(E_1)+P(E_2)=1}\\\Rightarrow 0.034+P(E_2)=1\\\Rightarrow P(E_2)=1-0.034\\\Rightarrow P(E_2)=\bold{0.966}

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Step-by-step explanation:

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