A boiler has five identical relief valves. The probabilitythat any particular valve will open on demand is .96.Assuming independent operation of the valves, calculateP(at least one valve opens) and P(at least one valve failsto open).

Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table.   Drive-thru Restaurant   ​    A B C D Order Accurate 339 279 244 133 Order Not Accurate 35 53 33 10   If three different orders are​ selected, find the probability that they are all from restaurant D.

Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Order Accurate Order Not Accurate Drive-thru Restaurant C 237 39 A 332 37 B 270 58 D 146 19 If three different orders are selected, find the probability that they are all from Restaurant A. The probability is. (Round to four decimal places as needed.)

Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant с 245 35 B 280 60 A Order Accurate 313 Order Not Accurate 38 If two orders are selected, find the probability that they are both accurate. Complete parts (a) and (b) below. The probability is. The events (Do not round until the final answe a. Assume that the selections are made with replacement. Are the events independent? The probability is. The events independent. (Do not round until the final answer. Round to four decimal places as needed.) b. Assume that the selections are made without replacement. Are the events independent? independent. D 129 10 are not are cimal places as needed.) ...