16.2 Jumping Rope
1 answer:
Answer:
Percentage of Diego's time is 75%.
Step-by-step explanation:
Given : Jumping Rope hool held a jump-roping contest. Diego jumped rope for 20 minutes. A school held a jur Jada jumped rope for 15 minutes.
To find : What percentage of Diego's time is that?
Solution :
Diego jumped rope for 20 minutes.
Jada jumped rope for 15 minutes.
Percentage of Diego's time is given by,
Therefore, percentage of Diego's time is 75%.
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Answer:
5.9 years.
Step-by-step explanation:
Central Limit Theorem
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, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
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For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
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In this question:
Mean of the population is
If a sampling distribution is created using samples of the ages at which 69 children begin reading, what would be the mean of the sampling distribution of sample means?
By the Central Limit Theorem, the same population mean, of 5.9 years.