3 years ago

Sorry for the crumbled paper Can someone help me Complete the chart

1 answer:

5 0

Answer:

4/10, 0.4, 40%

1/4, 0.25, 25%

Hope this helps also "Hi" again. :)

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We need the length of the sides.
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Answer:

25.5 days

Step-by-step explanation:

Mean number of days (μ) = 22 days

Standard deviation (σ) = 6 days

Z-score for the 72nd percentile (according to tabulated values) = 0.583

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$z=\frac{X-\mu}{\sigma}$

The value of X that is greater than 72% of the trial times is:

$0.583=\frac{X-22}{6}\\ X=25.5\ days$

Therefore, 72% of all of these types of trials are completed within 25.5 days.

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