Z-SCORES

Quiz
•
Mathematics
•
University
•
Medium
+1
Standards-aligned
Rose undefined
Used 777+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the purpose of z-scores?
to describe the exact location of a score within a distribution
to find the mean of the distribution
to describe the shape of the distribution
to find the standard deviation of the distribution
Tags
CCSS.HSS.ID.A.4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the formula to find the z-score for population?
z=X-M
z=σ-M/μ
z/M=μ
z=X-μ/σ
Tags
CCSS.HSS.ID.A.4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How to transform z-scores to X values for sample?
X=μ+zσ
X=M+zs
μ=X+zσ
σ(z)-M=s
Tags
CCSS.HSA.CED.A.4
CCSS.HSA.SSE.A.1
CCSS.HSS.ID.A.4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The sign of the z-score indicates whether the location is above(positive) or below(negative) the mean.
True
False
Tags
CCSS.HSS.ID.A.4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the z-score value corresponding if the location is below the mean by 2 standard deviations
+2.00
-2.00
+1.25
-1.00
Tags
CCSS.HSS.ID.A.4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the z-scores value corresponding if the location is above the mean by 1/2 standard deviations
-0.50
+1.00
+0.50
-1.00
Tags
CCSS.HSS.ID.A.4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
z-scores is the standardized scores for X values
True
False
Tags
CCSS.HSS.ID.A.4
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