Math 1 Unit 6 Statistics Day 1

​Mean- the average of your data set

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​Median- the middle number when data set ordered from least to greatest

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​Mode- the number occuring the most often in the data set

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​Range- the difference of the largest and smallest number in the data set

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​IQR- the difference of the third and first quartiles

Range = Maximum # - Minimum #

(Upper Extreme - Lower Extreme)

Interquartile Range (IQR) = Q3 -Q1

Get it!!!

Other Names:

Lower Extreme = Least Value = Minimum

Lower Quartile = First Quartile = Q1

Median = Q2

Upper Quartile = Third Quartile = Q3

Upper Extreme = Greatest Value = Maximum

It does not matter if each section are not the same size.

​Enter data- A=[2,3,4,5,6,7,4,5,3,6,7,2,8,9] (must use capital letter, =, and [ ])

​Go to next empty cell

Click Desmos keyboard

​Click Functions

​Click Dist

​Click boxplot and enter your capital letter in the parentheses (boxplot (A))

​Enter data- A=[2,3,4,5,6,7,4,5,3,6,7,2,8,9] (must use capital letter, =, and [ ])

​Go to next empty cell

Click Desmos keyboard

​Click Functions

​Click Stats

​Click stats and enter your capital letter in the parentheses (stats (A))

Find the 5 Number Summary for the following data set.

{8,6,3,5,3,4,2,9}

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​Also list Mean, IQR, and Range.

Each dot represents one answer. In the sheet to the right, 3 students answered that they had 0 cookies at lunch. 5 said they had 2 cookies.

​Enter data- A=[2,3,4,5,6,7,4,5,3,6,7,2,8,9] (must use capital letter, =, and [ ])

​Go to next empty cell

Click Desmos keyboard

​Click Functions

​Click Dist

​Click dotplot and enter your capital letter in the parentheses (dotplot (A))

If there is a number far from the normal set, we call that the outlier.

1,10,12,15,16

Our outlier is 1

Normal is like a camel hump or an upside down U.

Think of it like a tail. The if the numbers decrease on the right side of a graph, the tail goes to the right, and the graph is skewed right.

Our tail trails to the left, like a dinosaur. We say that these graphs are skewed left.

Graph that displays the data by using vertical bars of various heights to represent the frequencies of the classes.

​Enter data- A=[2,3,4,5,6,7,4,5,3,6,7,2,8,9] (must use capital letter, =, and [ ])

​Go to next empty cell

Click Desmos keyboard

​Click Functions

​Click Dist

​Click histogram and enter your capital letter in the parentheses (histogram(A))