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Statistics 2.2 Flashcards | StudBud
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Statistics 2.2
Statistics 2.2
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Flashcards
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Questions
10
Answers
1
Curving the grades of a test by a teacher is an example of linear transformation of data.
True
False
2
Adding a constant to a distribution changes which of the following :
Mean
IQR
Shape of distribution
Standard Deviation
3
Five points were added to everyone's test score. The new class average is:
Old average times five
Does not change
Old average plus five
4
Describe the transformation(s) for the following distribution of quantitative data.
Not enough information is given
Multiplication by a constant
Addition and multiplication by a constant
Addition of a constant
5
Multiplying/dividing by a constant in a quantitative data set affects measures of variability.
False
True
6
The mean of the standard normal curve is :
Not here
One standard deviation
Negative one standard deviation
zero
7
Adding a positive constant to each value in a quantitative data set affects measures of variability.
True
False
8
Multiplying/dividing a distribution by a constant does not changes which of the following :
Shape of distribution
Standard Deviation
median
Mean
9
What is the transformation for this distribution?
Subtracted one from each value
Added one to each value
none of the above
Multiplied each value by one
10
When all the values in a distribution are standardized, they are transformed.
False
True
