There is a margin of error on a food survey of +/– 5%. what is the range of the number of students who do not want hot dogs if 83 of 127 students said they did not want hot dogs on wednesdays and there are 900 students at the school?
a) 529 to 617 students
b) 559 to 647 students
c) 559 to 617 students
d) 559 to 600 students

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.

If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?

Harold moves no more than 43 of his sheep and goats into another field fewer then 22 of his animals are goats