Mr. bryant is trying to figure out which class project to work on for community service. he surveyed the junior and senior students about their preferred project. the frequency table shows the responses of the students.
juniors seniors total
park cleanup 30 26 56
food kitchen 50 34 84
clothing drive 10 50 60
total 90 110 200
determine the joint frequency of being a senior and wanting to have a park cleanup. explain what this answer represents.

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.

The equation |pl = 2 represents the total number of points that can be earned or lost during one turn of a game. which best describes how many points can be earned or lost during one turn? o o -2 2 oor 2 -2 or 2 o

Will give a: 122 b: 90 c: 48 d: 180