Bid Ideas Math Ch. 8 Test Review

Front

What is a biased sample?

Back

A biased sample is one where not all individuals have an equal chance of being selected, leading to results that may not accurately represent the population.

Front

What does it mean for a sample to be random?

Back

A random sample is one where every individual in the population has an equal chance of being selected, ensuring that the sample is representative.

Front

What is the measure of center in statistics?

Back

The measure of center refers to a value that represents the center of a data set, commonly calculated as the mean, median, or mode.

Front

What is the mean?

Back

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

Front

What is the median?

Back

The median is the middle value of a data set when the values are arranged in order.

Front

What is the mode?

Back

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

Front

What is the measure of variation?

Back

The measure of variation indicates how spread out the values in a data set are, commonly assessed using range, variance, or standard deviation.

Front

What is the range in statistics?

Back

The range is the difference between the highest and lowest values in a data set.

Front

What is the mean absolute deviation (MAD)?

Back

The mean absolute deviation (MAD) is the average of the absolute differences between each data point and the mean of the data set.

Front

What is a box-and-whisker plot?

Back

A box-and-whisker plot is a graphical representation of a data set that shows its minimum, first quartile, median, third quartile, and maximum.