Showing 11 to 20 of 5077 Questions
  • An injection-molded part is equally likely to be obtained from any one of the eight cavities on a mold. (a) What is the sample space? (b) What is the probability a part is from cavity 1 or 2? (c) What is the probability that a part is neither from cavity 3 nor 4?

  • A sample space contains 20 equally likely outcomes. If the probability of event A is 0.3, how many outcomes are in event A?

  • Orders for a computer are summarized by the optional features that are requested as follows: Proportion of orders No optional features 0.3 One optional feature 0.5 More than one optional feature 0.2 (a) What is the probability that an order requests at least one optional feature? (b) What is the pr

  • If the last digit of a weight measurement is equally likely to be any of the digits 0 through 9, (a) What is the probability that the last digit is 0? (b) What is the probability that the last digit is greater than or equal to 5?

  • A sample preparation for a chemical measurement is completed correctly by 25% of the lab technicians, completed with a minor error by 70%, and completed with a major error by 5%. (a) If a technician is selected randomly to complete the preparation, what is the probability it is completed without error? (b) What is the probability that

  • A credit card contains 16 digits between 0 and 9. However, only 100 million numbers are valid. If a number is entered randomly, what is the probability that it is a valid number?

  • Suppose your vehicle is licensed in a state that issues license plates that consist of three digits (between 0 and 9) followed by three letters (between A and Z). If a license number is selected randomly, what is the probability that yours is the one selected

  • A message can follow different paths through servers on a network. The senders message can go to one of five servers for the first step, each of them can send to five servers at the second step, each of which can send to four servers at the third step, and then the message goes to the recipients server. (a) How many paths are possible?

  • Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 100 disks are summarized as follows: Shock resistance High Low Scratch high 70 9 Resistance low 16 5 Let A denote the event that a disk has high shock resistance, an

  • Samples of a Fast aluminum part are classified on the basis of surface finish (in micro inches) and edge finish. The results of 100 parts are summarized as follows: Edge finish Excellent Good Surface excellent 80 2 Finish good 10 8 Let A denote the event that a sample has excellent surface