One Variable Statistics P3

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots representing the frequency of data points along a number line.

Front

How do you find the median of a data set?

Back

To find the median, arrange the data points in ascending order and identify the middle value. If there is an even number of data points, the median is the average of the two middle values.

Front

What is the upper quartile (Q3)?

Back

The upper quartile (Q3) is the median of the upper half of a data set, representing the 75th percentile.

Front

What does it mean if a data set has a mode?

Back

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

Front

How do you calculate the range of a data set?

Back

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

Front

What is the significance of the median in statistics?

Back

The median is a measure of central tendency that divides a data set into two equal halves, providing a better representation of the data when it is skewed.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often each value occurs in a data set.

Front

How can you interpret a dot plot?

Back

A dot plot can be interpreted by analyzing the distribution of dots to understand the frequency and spread of the data.

Front

What is the purpose of quartiles in statistics?

Back

Quartiles divide a data set into four equal parts, helping to understand the distribution and spread of the data.

Front

What is the difference between Q1 and Q3?

Back

Q1 (the first quartile) is the median of the lower half of the data set, while Q3 (the third quartile) is the median of the upper half.