In a Large Class,the Professor Has Each Person Toss a Coin

question 6

Multiple Choice

In a large class,the professor has each person toss a coin 200 times and calculate the proportion of his or her tosses that were tails.The students then report their results,and the professor records the proportions.One student claims to have tossed her coin 200 times and found 58% tails.What do you think of this claim? Explain your response.

• A)This is a fairly unusual result.Her proportion is about 1.60 standard deviations above the mean.
• B)This is a typical result.Her proportion is only 2.26 standard deviations above the mean.
• C)This is a fairly unusual result.Her proportion is about 2.26 standard deviations above the mean.
• D)This is an extremely unlikely result.Her proportion is about 200 standard deviations above the mean.
• E)This is a typical result.Her proportion is only 1.60 standard deviations above the mean.

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