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WorksheetsIM Adv. 6+ End of Unit 8 Assessment
Total questions: 10
Worksheet time: 7mins
This dot plot shows the number of hours 20 sixth grade students slept on a Saturday night.
Select all the true statements about the data used to build the dot plot.
Six students slept for at least 8 hours.
The mean amount of sleep is 6.25 hours.
More than half of the students slept 7 hours or less.
Only 1% of the students slept more than 8 hours.
The difference between the most hours of sleep and the least for these students was 2.5 hours.
The air quality was tested in many office buildings in two cities. The results of the testing are shown in these box plots.
A level of less than 50 parts per million is considered healthy. A level of 50 or more parts per million is considered unhealthy.
Select all the statements that must be true.
The lowest recorded measurement was in City Q.
All buildings testing in city P are in the healthy range.
The mean for city P is greater than the mean for city Q.
The range for city Q is greater than the range for city P.
The median for city P is less than the median for city Q.
Here is a dot plot showing how much time customers spent in a store, rounded to the nearest 5 minutes. Which of the following is a representative sample of this population?
Ten students each attempted 10 free throws. This list shows how many free throws each student made.
8 5 6 6 4 9 7 6 5 9
What is the median number of free throws made?
Based on this histogram, what is a typical length for these 20 flowers?
0-20 cm
20-40 cm
40-60 cm
60-80 cm
100-120 cm
An administrator of a large middle school is installing some vending machines in the school. She wants to know what type of machine would be most popular.
What is the population for the administrators question?
students, teachers, and staff at the school
30 people at the school
An administrator of a large middle school is installing some vending machines in the school. She wants to know what type of machine would be most popular.
What is an example for a sample for the administrators question?
students, teachers, and staff at the school
30 people at the school
Jada asked some students at her school how many hours they spent watching television last week, to the nearest hour. Here are a box plot and a histogram for the data she collected.
About how many students did Jada ask?
26
100
40
90
Is the mean or the median a more appropriate measure of center for this data set?
Mean
Median
Can Jada use the box plot and/or the histogram to find the exact median?
Yes
No
