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madam [21]
3 years ago
7

Terri gets most of her exercise by walking briskly. Last year she walked an average of 4.2 miles per day with a standard deviati

on of 1.2 miles per day. April swims for exercise last year she swam for a mean of 40 minutes per day with a standard deviation of 8 minutes per day. For the new year, both girls have resolved to exercise more. In January Terri walked an average of 6 miles per day while April swam for an average of one hour per day. Which girl is off to a better start relation to their results from the previous year?
Mathematics
1 answer:
Alinara [238K]3 years ago
3 0

Terri walked in her own 93rd percentile, while April swam in her own 99th percentile. April is off to a slightly better start.

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