Compare Center and Spread of Data Displayed in Dot Plots

Find the interquartile range for the data of the given dot plot.

(a)  

Find the standard deviation for the data of the given dot plot. Round to the thousandths place.

(a)  

Using the dot plot from before, what is the lower fence?

(a)  

Using the dot plot from before and the fences recently found, are there any outliers?

• Yes

• No

Minneapolis, MN and Portland, OR have very similar latitudes. Latitude measures how far north or south a place is, which in turn affects the temperature. The histograms show the daily high temperatures (in °C) that were recorded during January 2013 in each city. Which city has the smaller standard deviation for temperature?

• Minneapolis

• Portland

• Both

• Neither

Compare the centers and spreads. 

•  Math has a higher median (center) and a wider spread.

•  Math has a higher median (center) and a smaller spread.

• Math has a lower median (center) and a smaller spread.

• Math has a lower median (center) and a wider spread.

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• Add the two numbers in the middle & then divide by two.

• They are both the median

• None of the above

Which statement correctly describes the shapes of the dot plots for cars and SUVs?

• SUVs: symmetrical
  Cars: skewed left

• Both are skewed left

• Both are symmetrical

• SUVs: skewed right
  Cars: Skewed left

The ecological society sampled the green iguana population and made note of the length of each iguana sampled. The data is displayed. What is the RANGE?

Mathematical Equivalence

ON

Tags

6.13.A

What shape is the data shown in the dot plot?

• symmetrical

• skewed left

• skewed right