Mathematics, 12.01.2021 20:20, lealiastentz532542

A teacher samples the students in 8th grade to decide what the 8th-grade math classes need to review for their final exam. Which sample produces biased results? a The teacher assigns all 8th-grade students a number and then uses a random number generator to select 30 students.
b The teacher selects every third 8th-grade student who enters school one morning.
c The teacher puts each 8th-grade student's name on a popsicle stick, places the popsicle stick in a bucket, and then randomly selects 30 students.
d The teacher picks 30 8th grade students in the math club.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:00, sbailey0962

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

Answers: 1

continue

Mathematics, 21.06.2019 19:00, EMQPWE

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

Answers: 2

continue

Mathematics, 21.06.2019 22:50, tali2561

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

Answers: 1

continue

Mathematics, 21.06.2019 23:30, jordynp2615

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.

Answers: 2

continue

Do you know the correct answer?

A teacher samples the students in 8th grade to decide what the 8th-grade math classes need to review...