It is estimated that 0.50 percent of the callers to the Customer Service department of Dell Inc. will receive a busy signal. What is the probability that of today's 1,100 callers at least 5 received a busy signal

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Pranza plotted point a in the coordinate plane below.

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?