D15 U7 CIA Review Flashcardizz

Front

What is the equation of the line of best fit?

Back

The equation of the line of best fit is a linear equation that best represents the data points on a scatter plot. For example, y = -2x + 10 is a line of best fit.

Front

What does IQR stand for?

Back

IQR stands for Interquartile Range, which measures the spread of the middle 50% of a data set.

Front

Which city has a lower IQR?

Back

City B has a lower IQR compared to City A.

Front

What is the median?

Back

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

Front

How do you find the median of a data set?

Back

To find the median, arrange the numbers in order and select the middle number. If there is an even number of values, average the two middle numbers.

Front

What is the mean?

Back

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

Front

What can be concluded about the mean and the median in a skewed distribution?

Back

In a skewed distribution, the mean is often greater than the median if the data is positively skewed.

Front

What is a correlation coefficient?

Back

A correlation coefficient is a statistical measure that describes the strength and direction of a relationship between two variables.

Front

What does a correlation coefficient of r = 0.45 indicate?

Back

A correlation coefficient of r = 0.45 indicates a weak positive correlation between the two variables.

Front

What is the mode?

Back

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