Your TI-83 or TI-84
Find That Z-Score!
Types of Data
Descriptive Stats
Misc
100
If you want to enter data into your TI calculator, this is the first button you push.
What is STAT
100
This is calculated by subtracting the mean from the data value, then dividing by the standard deviation
What is the z-score
100
I consist of numbers representing counts or measurements
What is quantitative data.
100
My symbol is a lowercase "s" and I indicate the amount of spread (i.e. variation) in a data set.
What is sample standard deviation
100
I am a visual representation of a frequency distribution
What is a histogram
200
If you want to compute descriptive stats with your TI calculator after you have entered data into a list, you press STAT, scroll over to CALC, and select this option.
What is 1-Var Stats
200
James Madison was 163 cm tall. His height converts to the z-score of -2.28, which indicates that his height was 2.28 standard deviations below this.
What is the mean.
200
I have infinitely many possible quantitative values! For example, the average altitude of airplanes in the sky.
What is continuous data
200
I am Q2, also known as this
What is the median
200
A distribution is this if it is not symmetric and extends more to one side than the other
What is skewed
300
What?! I can't see all my descriptive stats! I thought this thing gave me the 5-number summary! Oh, I guess I need to do "this"
What is scroll down!!!!
300
The magnitude of an earthquake is 2.95. The mean magnitude is 1.184 and the standard deviation is 0.587. "This" is the z-score of the earthquake in question.
What is 3.01
300
I can be arranged in order, but the differences between my values either cannot be determined or are meaningless.
What is ordinal level of measurement
300
Out of mean and median, I am the one that is most sensitive to extreme values
What is the mean.
300
This is found by subtracting the first lower class limit from the second lower class limit in a frequency distribution
What is the class width
400
If I want to create a histogram or boxplot using my TI calculator, I enter my data in a list, then click the "2nd" button, then this button.
What is Y= or STAT PLOT
400
This is the number of standard deviations away from the mean that encompasses 95% of a normal distribution of data.
What is 2
400
The years in which all of you were born represents this level of measurement
What is interval level of measurement
400
I am the standard deviation, squared.
What is variance
400
My symbol is the letter x with a bar on top, pronounced "x-bar"
What is sample mean
500
If I do not have a TI-83 or TI-84 calculator, I can go borrow one from this place.
What is Quimby Library
500
When comparing z-scores of heights between Danny DeVito and Michael Jordan, he is the one with the lower z-score.
Who is Danny DeVito
500
Data in this level of measurement can be arranged in order, differences can be found and are meaningful, and there is a natural zero starting point which represents none of the quantity. An example is the price of cars.
What is ratio level of measurement
500
My symbol is the greek letter mu
What is population mean
500
In addition to looking at histograms and boxplots, I can also be used to assess normality. I am a scatterplot of z-scores versus data values, with a best fit line drawn through my points.
What is a Normal Quantile Plot
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