Pie charts and samples test, 7 grade

Question Nr. 1 out of 10

Out of 50 respondents, 45 chose answer B. What percentage is this?

77 %

8 %

90 %

95 %

43 %

Question Nr. 2 out of 10

A school wants to learn the opinion of all its students about the cafeteria. Which sampling method would be most representative?

Ask only the first ten students entering school

Survey only the basketball team

Survey only seventh-grade students

Randomly select students from every grade

Question Nr. 3 out of 10

A survey included 800 students. In the pie chart, 10% chose answer A. How many students chose A?

56

80

116

86

87

Question Nr. 4 out of 10

A sector of a pie chart has angle 108°. What percentage of all data does it represent?

90 %

66 %

30 %

69 %

42 %

Question Nr. 5 out of 10

A school wants to learn the opinion of all its students about the cafeteria. Which sampling method would be most representative?

Ask only the first ten students entering school

Survey only seventh-grade students

Randomly select students from every grade

Survey only the basketball team

Question Nr. 6 out of 10

Sections A, B and C of a pie chart represent 20%, 10% and 30%, respectively. What percentage is the remaining section D?

40 %

30 %

11 %

3 %

84 %

Question Nr. 7 out of 10

Out of 50 respondents, 10 chose answer B. What percentage is this?

76 %

87 %

75 %

20 %

55 %

Question Nr. 8 out of 10

A researcher selects every 10th person from a numbered list. What is this sampling method called?

A census

Convenience sampling

Systematic sampling

Cluster sampling

Question Nr. 9 out of 10

A category represents 20% of a pie chart. What is the angle of its sector?

79°

100°

72°

26°

102°

Question Nr. 10 out of 10

Which category has the largest share in the pie chart?

ABCD

D

B

A

C

Test: Pie charts and samples