Mathematics, 19.04.2021 06:10, valensanta2005
The mean on a statewide geography test was 74 with a standard deviation of 12. West County sampled
the scores of some of its students and reported a mean of 79 with a margin of error of +1.9.
To the nearest whole number, how many students were in West County's sample?
Answers: 1
Mathematics, 21.06.2019 20:00, ayoismeisalex
He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean and standard deviation according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%
Answers: 3
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