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sweet-ann [11.9K]
2 years ago
9

A school psychologist at a large high school took a random sample of 16 students and asked how much sleep they get on a typical

weekend night. The sample data were roughly symmetric with a mean of 8.75 hours and a standard deviation of 1.5 hours
Mathematics
1 answer:
puteri [66]2 years ago
7 0

Answer:

8.75 +/- 0.657

Step-by-step explanation:

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Using the power of zero property, we find that:

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The power of zero property states that any number that is not zero elevated to zero is 1, that is:

Thus, at item a, , thus the simplification is .

At item b, equivalent expressions are found elevating non-zero numbers to 0, thus  and .

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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