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Statistical Q's
Histograms and Dot Plots
Box-and-Whisker Plots
Measures of Center and Range
Analyzing Stats
100
If I want to do a statistical study on the weight of newborn babies in the United States, would I be collected categorical information or numerical?
What is numerical?
100
I have a number line of 1-10. If I have 3 fours, 2 threes, and 4 sevens in my data set, what would my dot plot look like.
What is three dots over the four, two dots over the three, and four dots over the seven?
100
The first quartile represents _____% of your data set.
What is 25%?
100
When I subtract the lowest number from the highest number in a set of data, I am finding this.
What is the range of a data set?
100
When an outlier is present in a data set, we can usually eliminate this measure of center.
What is the mean?
200
When creating statistical questions, it is always important to have enough of this-having much diversity.
What is variability?
200
When creating a dot plot, it is important to make sure that each dot is _____ ______ from the other.
What is evenly spaced?
200
These terms make up the Five Number Summary of a data set.
What is the minimum, the first quartile, the median, the third quartile, and the maximum.
200
A number that appears most frequently in a data set is called this.
What is the mode?
200
In the Explore activity from the book, we found this measure of center to be a "balancing point"
What is the mean?
300
A question that causes an error or skewed data is referred to as this.
What is a biased question?
300
The bars in a bar graph are evenly spaced where as the bars on a histogram are this.
What is touching?
300
The "box" in a box-and-whisker plot represents _____% of your data set.
What is 50%?
300
When I add up all of the numbers in a data set and divide it by the number of values in my data set, what measure of center am I finding?
What is the mean or average.
300
A number that extremely varies from the data set is referred to as this.
What is an outlier?
400
When representing a statistical question on a graph it can be misleading if the y-axis does not start at this number.
What is zero?
400
A histogram can have ____ to _____ intervals.
What is 4-12?
400
The "whisker" to the far right of your box-and-whisker plot represents this number in the five number summary.
What is the maximum?
400
When finding measures of center or range, I ALWAYS do this first.
What is order the data set from least to greatest?
400
In this situation, all three measures of center would be appropriate to use.
What is when there are no outliers and the mode does not dominate the data set?
500
Write an unbiased statistical question.
Answer will vary.
500
Create a histogram of the following data. 2,2,3,4,5,7,10,12, 14,15,16,17
Answer may vary.
500
Create a box-and-whisker plot from this data set. 12,14,14,14,16,18,22,35,36,40
Check student work.
500
Find the measures of center for this data set. 2,4,5,6,6,7,8,12,15
Mean:7.2 Median:6 Mode: 6
500
What is the best measure of data to represent this data set and why? 20,24,17, 18, 19, 57, 22, 32
What is the median because there are no modes and there is an outlier present.