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polet [3.4K]
3 years ago
13

the length of an instant message conversation is normally distributed with a mean of 2 minutes and a sd of .5 minutes. what is t

he probability that the conversation lasts longer than 3 minutes?
Mathematics
1 answer:
Artist 52 [7]3 years ago
4 0

Answer:

0.0764

Step-by-step explanation:

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By quantifying the difference between two numbers and expressing it as an increase or decrease, the Percentage Change Calculator (percent change calculator) may determine the percentage change.

The initial price V_{1} (100%) was decreased by 10%., then this reduced price is reduced more by 20% that becomes the final price V_{2} which is 72.

Calculate percentage change from $V_{1}=100$ to $V_{2}=72$.

=& \frac{\left(V_{2}-V_{1}\right)}{\left|V_{1}\right|} \times 100 \\

=& \frac{(72-100)}{|100|} \times 100 \\

=& \frac{-28}{100} \times 100 \\

=&-0.28 \times 100 \\

=&-28 \% \text { change } \\

=& 28 \% \text { decrease }

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