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Checkpoint 2

Last updated over 1 year ago

11 questions

1 point

1

Question 1

1.

0.135

.016

0.27

0.475

1 point

1

Question 2

2.

1 point

1

Question 3

3.

0.32

0.42

0.44

0.72

1 point

1

Question 4

4.

A

B

C

D

1 point

1

Question 5

5.

0.05

0.025

0.003

0.0015

1 point

1

Question 6

6.

Eric throws were both accurate and precise, because all of his throws hit the board in the same area

Eric throws were accurate but not precise, because all of his throws hit the board in the same area, but they did not hit the center of the target

Eric throws were precise but not accurate, because all of his throws hit the board in the same area, but they did not hit the center of the target

Eric throws were neither precise nor accurate, bacuse non of his throws hit the center of the target.

1 point

1

Question 7

7.

Every student attends a first period class. Two students are randomly chosen form each of the 50 first period classess to be included ini the survey

In the morning as students enter the school, every 15th student gets chosen, resultin in atotal of 100 students included in the survey.

The names of student who have perfect attendance are put on slips of paper and put in a bag.  A teacher randomly draes 100 slips of paper from the bag and the students named on those slips will be included in the survey

Twenty five students from each grades 9, 10, 11 and 12 are chosen at random to be included in the survey

1 point

1

Question 8

8.

Gerald's calculated mean time is most likely the better estimate because his sample has less variability due to a smaller sample size

Gerald's calculated mean time is most likely the better estimate because his sample has is more precise due to a smaller sample size

Sharon's calculated mean time is most likely the better estimate because her sample has less bias due to a larger sample size

Sharon's calculated mean time is most likely the better estimate because hersamplemore accurate due to a larger sample size

1 point

1

Question 9

9.

23/44

23/66

66/209

44/209

1 point

1

Question 10

10.

25

38

44

82

1 point

1

Question 11

11.

3/36

5/36

10/36

11/36