If Ivy conducted her survey of 25 students on a volunteer basis, are the results represel 5
No; The sample size is large, but likely biased.
O
No; The sample size is small and not randomly selected
O
Yes; The sample size is large and randomly selected.
O
Yes; The results match what Ivy expected.
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Question 17
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Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.