10.3 Measures of Center & Spread

Which of the following best describes the shape of the distribution?

• skewed left

• skewed right

• uniform

• symmetrical

Which of the following best describes the shape of the distribution?

• skewed left

• skewed right

• uniform

• symmetrical

Given that the data is symmetric, which pair of measures should be used to represent the data?

• center: median

  spread: standard deviation

• center: mean

  spread: IQR

• center: mean

  spread: standard deviation

• center: median

  spread: IQR

The dot plots show the gas mileage, in miles per gallon, for several cars and SUV's. Which type of vehicle has a larger spread?

• cars

• SUVs

Find the mean of these numbers:

2, 57, 38, 42, 6

Mathematical Equivalence

OFF

Tags

CCSS.7.NS.A.3

Find the median from the list of numbers:

60, 58, 52, 48, 60

• 58

• 59

• 60

• 118

Tags

CCSS.7.EE.B.3

Find the range.
12, 5, 9, 18, 22, 25, 5

• 20
• 15
• 22
• 18

Tags

CCSS.4.MD.B.4

Find the 1st Quartile (Q1) of the following data set:

2, 3, 4, 5, 5, 5, 7

Mathematical Equivalence

ON

For the data set below, which of the following measures is greatest?{20, 25 30, 31, 32, 45, 45, 80}

(a)  

• Mean

• Median

• Mode

• Range

Four data sets are shown below.
Set 1: {10, 19, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {9, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 51}
Which data set has the largest standard deviation?

• Set 1
• Set 2
• Set 3
• Set 4