In the bar chart We mark the frequencies on the …. axis

in bar graph We leave a small gap between adjacent bars

Bar charts can't also be used to give a visual comparison of two or more groups.

When constructing a comparative bar graph we use ...........to construct the scale on the vertical axis
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Pie charts : are most effective for summarizing data sets when there are not too many different categories

A circle divided into portions that represent the relative frequencies or percentages of apopulation or a sample belonging to different categories.

For quantitative data, an interval that includes all the values that fall within two numbers-the
lower and upper limits is called a ...

The............ is given by the midpoint of the upper limit of one class and the lower limit of the next class.

the difference between the two boundaries of a class gives the …

The............. or mark is obtained by dividing the sum of the two limits (or the two boundaries) of a class by 2

can be displayed in many common ways such as a histogram or a polygon

The bars in a histogram are drawn adjacent to each other with gap between them.

A histogram can be drawn for

A histogram can assume any one of a large number of shapes.

A graph formed by joining the midpoints of the tops of successive bars in a histogram with straight lines is called ...........(جت في الامتحان)

in a stem-and-leaf display of quantitative data, each value is divided into two portions: a stem and a leaf.The leaves for each stem are shown separately in a display.

can help us detect outliers (extreme values) in a data set

Data sets consist of measurements collected over time at regular intervals so that we can learn about change over time

… is the most frequently used measure of central tendency. For ungrouped data

is obtained by dividing the sum of all values by the number of values in the data set: