In a Large Class, the Professor Has Each Person Toss

Multiple Choice

In a large class, the professor has each person toss a coin several times and calculate the proportion of his or her tosses that were heads.The students then report their results, and the professor plots a histogram of these several proportions.If the students toss the coin 100 times each, about 68% should have proportions between what two numbers?
Use the 68-95-99.7 Rule to provide the appropriate response.

A) 0.34 and 0.67
B) 0.45 and 0.55
C) 0.16 and 0.84
D) 0.495 and 0.505
E) 0.05 and 0.1