8) In the United States, 40% of the population has brown eyes (based on a statis

Question

8) In the United States, 40% of the population has brown eyes (based on a statistical report at Indiana University). A random sample of 670 adults was selected and the number of adults with brown eye was recorded a) Find the mean and standard deviation of number of adults with brown eyes in a sample of 670. b) Use Range Rule of Thumb to find the of number of adults within the sample of 670 adults with significantly high numbers or low numbers of adults with brown eyes. c) Is it unlikely to have 200 adults with brown eyes in a group of 670 adults? Explain.

Explanation / Answer

8) In the United States, 40% of the population has brown eyes (based on a statistical report at Indiana University). A random sample of 670 adults was selected and the number of adults with brown eye was recorded a) Find the mean and standard deviation of number of adults with brown eyes in a sample of 670. b) Use Range Rule of Thumb to find the of number of adults within the sample of 670 adults with significantly high numbers or low numbers of adults with brown eyes. c) Is it unlikely to have 200 adults with brown eyes in a group of 670 adults? Explain.

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