Math IA - 6.5 DHQ (1st) 12/10

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, where the data is grouped into intervals (bins) and the height of each bar represents the frequency of data points within that interval.

Front

What is the purpose of labeling axes in a graph?

Back

Labeling axes in a graph provides context and clarity, allowing viewers to understand what the data represents, including the variables being measured and their units.

Front

What does it mean for intervals in a histogram to overlap?

Back

Overlapping intervals in a histogram means that the ranges of two or more intervals share common values, which can lead to confusion in interpreting the data.

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, sum all the values in the data set and then divide by the number of values.

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram, but retains the original data values while showing their distribution.

Front

What is the significance of the height of a bar in a histogram?

Back

The height of a bar in a histogram indicates the frequency of data points that fall within the corresponding interval.

Front

What is the difference between a histogram and a bar graph?

Back

A histogram is used for continuous data and shows frequency distributions, while a bar graph is used for categorical data and compares different groups.

Front

What does it mean if a histogram is skewed to the right?

Back

A right-skewed histogram indicates that the majority of the data points are concentrated on the left side, with a tail extending to the right, suggesting a few high values.

Front

What is the mode of a data set?

Back

The mode is the value that appears most frequently in a data set.

Front

How do you determine the range of a data set?

Back

The range is determined by subtracting the smallest value from the largest value in the data set.