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Make Sense? In Exercises 82-85, determine whether each statement makes sense or does not make sense, and explain your reasoning.
I must have made an error calculating probabilities because
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- Determine if the statement is true or false. If the statement is false, then correct it and make it true. If the probability that you will graduate is 0.63, then the probability that you will not graduate is -0.63.arrow_forwardThe probability that event A or event B will occur is P(A or B)=P(A)+P(B)−P(A or B).arrow_forwardBy rewriting the formula for the Multiplication Rule, you can write a formula for finding P(A and B) conditional probabilities. The conditional probability of event B occurring, given that event A has occurred, is P(B| A) = Use the information below to find the probability that a flight arives on time given that it departed on time. P(A) The probability that an airplane flight departs on time is 0.91. The probability that a flight arives on time is 0.86. The probability that a flight departs and arrives on time is 0.84. The probability that a flight arrives on time given that it departed on time is. (Round to the nearest thousandth as needed.)arrow_forward
- By rewriting the formula for the multiplication rule, you can write a formula for finding P(A and B) conditional probabilities. The conditional probability of event occuring, given that event A has occurred, is P(B| A) = Use the information below to find the probability that a flight departed on time given that it arrives on time. P(A) The probability that an airplane flight departs on time is 0.89. The probability that a flight arrives on time is 0.89. The probability that a flight departs and arrives on time is 0.82. The probability that a flight departed on time given that it arrives on time is (Round to the nearest thousandth as needed.)arrow_forwardBy rewriting the formula for the multiplication rule, you can write a formula for finding P(A and B) P(A) conditional probabilities. The conditional probability of event B occurring, given that event A has occurred, is P(B| A)D Use the information below to find the probability that a flight departed on time given that it arrives on time. The probability that an airplane flight departs on time is 0.91. The probability that a flight arrives on time is 0.89. The probability that a flight departs and arrives on time is 0.82. The probability that a flight departed on time given that it arrives on time is (Round to the nearest thousandth as needed.) rcesarrow_forwardA student goes to the library. Let events B = the student checks out a book and D = the student checks out a DVD. Suppose that P(B) = 0.56, P(D) = 0.95 and P(B AND D) = 0.39. Find P(D|B). Give your answer as a decimal rounded to the nearest hundredth.arrow_forward
- How are your grades? In a recent semester at a local university, 700 students enrolled in both Statistics I and Psychology I. Of these students, 77 got an A in statistics, 68 got an A in psychology, and 35 got an A in both statistics and psychology. Round the answers to four decimal places, as needed. Part 1 of 2 (a) Find the probability that a randomly chosen student got an A in statistics or psychology or both. The probability that a randomly chosen student got an A in statistics or psychology or both is Part 2 of 2 (b) Find the probability that a randomly chosen student did not get an A in psychology. The probability that a randomly chosen student did not get an A in psychology is X Xarrow_forwardAlice has some red balls and some blue balls in a bag. Altogether she has 25 balls. Alice picks one ball from the bag. The probability that Alice picks a red ball is x and the probability that Alice picks a blue ball is 4x. Work out how many blue balls are in the bag.arrow_forwardWe are learning to use the formula: P(A or B)=P(A)+P(B)-P(A and B) Now, the question is: Using data from a table listing drive-thru order accuracy at four different restaurants, if one order is randomly selected, find probability of getting an order from retaurant A or D or an order that is not accurate. A B C D Order Accurate 330 267 231 131 Order NOT Accurate 31 58 34 20 * I tried watching a solve from the professors video and she was adding the total # of errors from all restaurants + Errors from Restaurant A + Errors from Restaurant D/grand total of all transactions. So, I tried the identical solve and came up with a wrong answer.arrow_forward
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