Rachel's dance recital is coming up on Saturday. Her grandparents told her there is a 3
4
the chance that they will attend. How likely is it that her grandparents will attend Rachel's recital?
A.
It is certain they will attend.

B.
It is impossible they will attend.

C.
It is likely they will attend.

D.
It is as likely as not they will attend.

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Suppose i flip two identical coins. what is the probability that i get one head and one tail?