17. A survey of 500 radio
ev of 500 radio listeners was conducted to find the number who listened to a weekly political
am. Of the listeners surveyed, 120 said that they had listened to the political program at least once. It
n additional 2,500 listeners are surveyed, which is the best prediction of the number of those listeners
who have listened to the political program at least once?
A
B
750
600
1,200
800
D
A random survey of 140 seventh graders from the various middle schools in a school district determine
that 120 of them had a cell phone. Using the survey results, which is the best prediction for how many
100 seventh graders in the district have a cell phone?

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.