percentiles and z-scores
Authored by Kate Delavan
Mathematics
10th - 12th Grade
CCSS covered
Used 118+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Given the data set: 1, 2, 3, 6, 9, 11, 45, 102, calculate the percentile for the data value 11 in this set.
70th percentile
62.5th percentile
72.5th percentile
75th percentile
Tags
CCSS.6.SP.B.5
CCSS.6.SP.A.2
CCSS.6.SP.A.3
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Here are the weights (in pounds) of 10 puppies: 4 4 5 7 8 8 8 10 12 13 What is the percentile of a 5 pound puppy?
30th percentile
20th percentile
70th percentile
30th percentile
Tags
CCSS.6.SP.B.5
CCSS.6.SP.A.2
3.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Adam's Z-score on a test is +2.50. What does this mean?
Adam's score has a 2.5% chance of being better than any other randomly selected score.
Adam's test score was better than 25% of his peers.
He scored 2.5 standard deviations above the average.
He did terrible.
Tags
CCSS.6.SP.B.5
CCSS.6.SP.A.3
4.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Joanne's score on a test gives her a Z-score is -1.50. What does this mean?
Joanne didn't take the test yet.
Joanne's test score is 1.50 standard deviations below the average test score.
Joanne did better than 1.50 times her peers.
Joanne's test score, on average, was 1.5 points lower than the other test scores.
Tags
CCSS.6.SP.B.5
CCSS.6.SP.A.3
5.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
What is the Z-score for Tina if she got a 31 on the ACT, the mean was 23 and the SD was 4?
+0.20
+2.00
-2.00
-0.20
Tags
CCSS.HSS.ID.A.4
6.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
So if Tina's Z-score is +2.00 and Paula's Z-score is +1.09, who performed better?
Tina's performance is farther above the mean so she did better.
Paula's score is closer to the mean so she did better.
They both did the same.
Tags
CCSS.6.SP.B.5
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
The 50th percentile is also known as the _______________.
median
mean
mode
best percentile
Tags
CCSS.6.SP.B.5
CCSS.6.SP.A.2
CCSS.6.SP.A.3
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