The scores on a test are: 12, 15, 15, 15, 18, 20, 22. What is the mean score?
12 Essential math M,M,M,R

Quiz
•
Mathematics
•
12th Grade
•
Hard
Simone SCHOT
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A) 15
B) 17.4
C) 18
D) 20
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the median of 12, 15, 15, 15, 18, 20, 22?
15
18
16
20
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mode of 12, 15, 18, 15, 20, 22, 15?
12
15
18
20
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the range of 12, 15, 18, 15, 20, 22, 15?
5
10
12
15
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you remove the largest value from 7, 9, 10, 12, 13, 18, the mean will:
Increase
Decrease
Stay the same
Not enough info
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In drink bottle prices: $12, $16, $14, $17, $75 — how does the $75 affect the mean?
Raises mean
Raises median
Lowers both
No effect
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is median sometimes better than mean?
It uses all data
It’s faster to calculate
It’s not affected by outliers
It’s the smallest value
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