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Mathematics, 10.07.2019 15:50 SKSKSKSKGKUFHjk
The reading speed of second grade students is approximately normal, with a mean of 88 words per minute (wpm) and a standard deviation of 12 wpm. a) what is the probability a randomly selected student will read more than 95 words per minute? b) what is the probability that a random sample of 12 second grade students results in a mean reading rate of more than 95 words per minute? c) what is the probability that a random sample of 24 second grade students results in a mean reading rate of more than 95 words per minute? d) what effect does increasing the sample size have on the probability? provide an explanation for this result.
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