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3 years ago

Ticket prices were on sale from $8.75 to $6.00. What is the percent of decrease rounded to the nearest tenth?

1 answer:

4 0

The ticket price was decreased by 8.75-6=2.75$
to know the percentage of decrease:
percentage=(fraction of decrease/total price) x 100
percentage = (2.75/8.75) x 100
= 31.4%

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Part a

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$\bar X \sim N (\mu, \frac{\sigma}{\sqrt{n}})$

With:

$\mu_{\bar X}= 83$

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Part b

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Part c

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Part d

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