Find the mean of these numbers: 5,11,2,12,4,2
Possible Answers:
a. 4.1
b. 4.5
c. 6
d. 4
My Answer: 6
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3, 4, 5, 5, 5, 6,7 : The range of these numbers is ...
Possible Answers:
a. 15
b. 4
c. 5
d. 2
My answer: 4
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In order to find the median, the data must be sorted from least to greatest first. True or false?
Possible Answers:
a. True
b. False
My answer:
True
You use this type of graph when comparing a change over the course of time:
Possible Answers:
a. pie or circle graph
b. line graph
c. bar graph
My answer:
Line graph
A middle school has 6th grade, 7th grade, and 8th grade teachers. The principal wants to determine what supplies to order for the supply closet. Which of the following represents a random sample of teachers?
Possible Answers:
a. Surveying all the math teachers
b. Surveying all the teachers who have bus duty
c. Surveying all the teachers who are married
d. Surveying every fifth teacher according to the staff directory on the school website
My answer: Surveying all the teachers who are married
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Final question:
A student wants to know which type of pizza high school students prefer. Which of the following options is a good, representative sample of the population?
Possible Answers:
a. Asking all the 10th graders in the school
b. Asking the school principal which type of pizza he prefers
c. Asking 20 students from each grade level
d. Asking the students who walk to school
My answer:
Asking 20 students from each grade level
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Please check my answers!
11 answers
a. 4.1
b. 4.5
c. 6
d. 4
My answer is c.
2. 3, 4, 5, 5, 5, 6, 7. The range of these numbers is ...
a. 15
b. 4
c. 5
d. 2
My answer is b.
3. In order to find the median, the data must be sorted from least to greatest first. True or false?
a. True
b. False
My answer: a.
4. You use this type of graph when comparing a change over the course of time:
a. pie or circle graph
b. line graph
c. bar graph
My answer was b.
5. A middle school has 6th grade, 7th grade, and 8th grade teachers. The principal wants to determine what supplies to order for the supply closet. Which of the following represents a random sample of teachers?
a. Surveying all the math teachers
b. Surveying all the teachers who have bus duty
c. Surveying all the teachers who are married
d. Surveying every fifth teacher according to the staff directory on the school website
My answer was c.
6. A student wants to know which type of pizza high school students prefer. Which of the following options is a good, representative sample of the population?
Possible Answers:
a. Asking all the 10th graders in the school
b. Asking the school principal which type of pizza he prefers
c. Asking 20 students from each grade level
d. Asking the students who walk to school
My answer was c.
a. pie or circle graph
b. line graph
c. bar graph
my answer was c.