statistics

The life spans of three randomly selected tires are
28,100
miles,
37,900
miles, and
33,000
miles. Using the empirical rule, find the percentile that corresponds to each life span.

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2. 👎 0
3. 👁 210
1. Insufficient data. Mean? Standard deviation?

Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability below each Z value. Multiply by 100.

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2. 👎 0

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