
Prob & Stats Semester Exam
Authored by George Avlonitis
Mathematics
10th - 12th Grade
CCSS covered
Used 7+ times

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80 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Joe scores 70% on a 50-point test and 90% on a 100-point test. What is the weighted mean?
80%
83%
85%
87%
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Mr. A records the # of students in class daily. What type of graph should he use to show how attendance varies during the year?
Pie graph
Pictograph
Time series graph
Pareto chart
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
A coin has 2 sides. If we say the chance of getting a head is ½, that’s an example of what type of probability?
empirical
subjective
classical
all of these
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
What is the midpoint of the class 9.5 – 14.5?
12
12.5
12.25
13
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
A commercial states a car is 15% more fuel efficient. This is an example of what?
Changing the subject
detached statistics
ambiguous averages
Suspect samples
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
What do we call a characteristic of a subject that can assume different values?
datum
sample
variable
exponent
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
If the mean of a data set is 10 and its variance is 4, what is its coefficient of variation?
0.2
0.4
2.5
5
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