Amanda selected 18 pea pods at random from a bag containing about 500 pea pods. she opened each pod and counted the number of peas in the pod.

what is the estimated mode of the number of peas to be found in all the pea pods?

a.
8

b.
8.5

c.
9

d.
10

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.