More coins. Suppose the class in Exercise 5 repeats the coin-tossing experiment.

a) The students toss the coins 25 times each. Use the 68 95 99.7 Rule to describe the sampling distribution model.

b) Confirm that you can use a Normal model here.

c) They increase the number of tosses to 64 each. Draw and label the appropriate sampling distribution model.

Check the appropriate conditions to justify your model.

d) Explain how the sampling distribution model changes as the number of tosses increases.

n mean st. dev.

20 0.8481 0.0803 50 0.8507 0.0509 75 0.8481 0.0406 100 0.8488 0.0354