Histograms and Data Distribution

How many students are represented by the histogram?  

• Cannot be determined

• 9

• 31

• 35

It is useful to describe the shape of data. It can be symmetrical or have a positive or negative skew. Data with a positive skew has a long tail in the positive direction of the horizontal axis. Data with a negative skew has....

• a long tail in the direction of the negative horizontal access

• a long tail in the direction of the positive horizontal access

Is this data positively or negatively skewed?

• Positively skewed

• Negatively skewed

What is the shape of the distribution?

• Skewed Left 

• Skewed Right

• Symmetric

• Bimodal

What does the shape of a histogram represent?

• Distribution of data

• Standard deviation of data.

• Mean of data.

• Frequency of data.

Histograms based on data on housing prices and salaries typically are

• skewed to the left

• skewed to the right

• stacked

• symmetric

An inference that can be made fro the histogram is that the ​ (a)   is less than the ​ (b)   .

• mean

• median

• symmetric

• distributed

• skewed

In the histogram, the ​ (a)   and (b)   are equal or almost equal.

• mean

• meidan

• skewed

• symmetric

• distributed

How can you interpret a histogram to understand the data distribution?

• A histogram helps us understand the data distribution by visualizing the frequency or count of data points within different ranges.

• A histogram helps us understand the data distribution by indicating the standard deviation of the data points.

• A histogram helps us understand the data distribution by displaying the maximum value of the data points.

• A histogram helps us understand the data distribution by showing the average value of the data points.

How many cities have temperatures between 70 degrees and 99 degrees?

• 44

• 34

• 26

• 62