Helga oversleeps on one day in 5, and when this happens she breaks her shoelace 2 out of 3 times. When she does not oversleep, she breaks her shoelace only once out of 6 times. If she breaks her shoelace, she is late for school. A. Calculate the probability that Helga is late for school
B. What is the probability that she is not late for school
C. In 30 school days, how many times would you expect Helga to be late?

What is the fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

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.