Dec 4 B4 Mean, Median, Mode, Midrange, Weighted Mean

Front

What is the mode in a data set?

Back

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

Front

How do you find the median in an even data set?

Back

Order the data, add the two middle values, and divide by 2.

Front

What is the midrange of a data set?

Back

The midrange is calculated by adding the highest and lowest values together and dividing by 2.

Front

How do you calculate the mean of a frequency distribution?

Back

Multiply each class midpoint by its frequency, sum these products, and divide by the total frequency.

Front

What does a skewed left distribution indicate?

Back

A skewed left distribution has a longer tail on the left side, indicating that most values are concentrated on the right.

Front

What is the definition of mean?

Back

The mean is the average of a data set, calculated by summing all values and dividing by the number of values.

Front

What is the difference between mean and median?

Back

The mean is the average of all values, while the median is the middle value when data is ordered.

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 do you identify the mode in a data set?

Back

Count the frequency of each value; the value with the highest frequency is the mode.

Front

What is a symmetrical distribution?

Back

A symmetrical distribution is one where the left and right sides of the graph are mirror images of each other.