question archive On average, the number of days it takes for a caterpillar to become a butterfly is 18 days with a standard deviation of 2
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On average, the number of days it takes for a caterpillar to become a butterfly is 18 days with a standard deviation of 2.5 days.
Fill in the values for the normal curve for the time to mature into a butterfly. From left to right, the values would be:
Quantify, what is the chance that a caterpillar will turn into a butterfly in 16.125 days or less? answer as a percentage without rounding your answer.
At a butterfly sanctuary, there are a 10,000 caterpillars waiting to transform into butterflies. How many out of 10,000 would you expect to become a butterfly in 18.25 days or more?
Answer:
From left to right,
Let SD = standard deviations
the values will be (mean - 3SD), (mean - 2SD), (mean - SD), (mean), (mean + SD), (mean + 2SD), (mean + 3SD)
Need z-values and z-table for other 2
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