AACPS Statistical Analysis Shape, Center, Spread

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

• skewed left

• skewed right

• uniform

• symmetrical

Should we use the mean or the median to represent the center of the data?

(a)  

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

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

• skewed left

• skewed right

• uniform

• symmetrical

Which describes the shape of the distribution?

• skewed right

• skewed left

• symmetric

• uniform

What is the shape of this bar graph?

• Skew right

• Skew left

• Symmetrical

• uniform

Which statistic measures how spread out the data values are in a data set?

• mean

• mode

• maximum value

• standard deviation

When is the median a better choice for measure of center compared to the mean?

• When the distribution is symmetric

• When the distribution is almost symmetric

• When the distribution is strongly skewed

• When there are a lot of data values

What is the measure of spread that is essentially the average distance from the mean of all the data.

• Standard Deviation

• IQR

• Range

• Variance