Question: One of the authors did a survey to determine the
One of the authors did a survey to determine the effect of students changing answers while taking a multiple-choice test on which there is only one correct answer for each question. Some students erase their initial choice and replace it with another. It turned out that 61% of the changes were from incorrect answers to correct and that 26% were from correct to incorrect. What percent of changes were from incorrect to incorrect?
Answer to relevant QuestionsSuppose that in an election, adults are classified as having voted, being registered to vote but not voting, and not being registered to vote. In one town, 65% of the adults voted and 25% were not registered. What percentage ...A driving exam consists of 30 multiple-choice questions. Each of the answers is either right or wrong. Suppose that the probability of making fewer than 7 mistakes is 0.23 and the probability of making from 7 to 15 mistakes ...Using the table in Exercise 5.59, determine whether being unhappy is independent of disagreeing with the statement for this sample. Criminal cases are assigned to judges randomly. The list of the criminal judges for Memphis, Tennessee (taken from the Tennessee Court System website, www.tsc.state.tn.us), is given in the table. Assume that only Carolyn ...Some estimates say that 10% of the population is left-handed. We wish to design a simulation to find an empirical probability that if five babies are born on a single day, one or more will be left-handed. Suppose we decide ...
Post your question