Samples to Predict Populations

Quiz
•
Mathematics
•
7th Grade
•
Hard
Anthony Clark
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Clementine completes a report by asking 70 students across campus. She found that 48% of KVMS students do not wash their hands after using the bathroom. What is the sample size?
48
100
70
All KVMS students
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A student wants to know which type of pizza the students at his high school prefer. Which option would give a unbiased, representative sample:
Asking all the students in the hot lunch line.
Asking 10 random students from each homeroom.
Asking every other student who gets off a school bus.
Asking all the 10th graders.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The city council in Middlefield wants to know if residents are in favor of a traffic camera at the main intersection in town. Which example is likely to produce a representative sample?
Drivers who reside in Middlefield
Residents randomly chosen from the town register
All residents of Middlefield
All people with a five-letter last name
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Group A and Group B were randomly sampled from the same population. Which statements below are true? Select all that apply.
Group A has a greater median than Group B
Group A has a greater range than Group B
Group A has greater variability than Group B
Group B has a greater median than Group A
You cannot tell which group has the greater median based on the picture.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Keyli gathers the heights of a random sample of six graders and seventh graders and displays the data in box plots. What can she say about the data sets?
The 6th grade sample has greater variability.
The 7th grade sample has greater variability.
The 6th grade sample has the greater median.
The ranges are equal for both samples.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kerron gathers the heights of a random sample of 6th graders and 7th graders and displays the data in box plots. Which statement below is true?
The median of the 7th grade sample is greater than the 6th grade sample.
The 7th grade sample has greater variability.
The ranges of both data samples are equivalent.
The median of the 6th grade sample is greater than the 7th grade sample.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mykel surveyed 15 7th graders and 15 8th graders at his school to see how many hours they spend per day listening to music. He made two box plots to compare the data sets. What inference can he draw from the data sets?
The range is greater for the 8th graders, so there is greater variability for the 8th graders than the 7th graders.
The person who listens to music the least is a 7th grader.
The median is greater for the 7th graders, so they generally spend more time listening to music than 8th graders.
No inferences can be made from the box plots.
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