
Understanding Z-Scores and Normal Distribution

Interactive Video
•
Mathematics, Science
•
9th - 12th Grade
•
Hard

Amelia Wright
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What tool is introduced in the video for calculating probabilities in a normal distribution?
SPSS
Excel
onlinestatbook.com
R Studio
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a z-score?
The number of standard deviations a data value is from the mean
A measure of central tendency
A measure of variability
The mean of a data set
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mean of the standard normal distribution?
1
0
100
50
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the probability that a z-score is greater than 0.8?
0.212
0.788
0.100
0.500
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which option should be selected in the calculator to find the probability of a z-score being less than a given value?
Above
Below
Outside
Between
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the probability that a z-score is less than -1.5?
0.933
0.067
0.150
0.500
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the probability that a z-score is between -2.3 and 1.2?
0.500
0.874
0.250
0.126
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