Complex Fractions_Scatterplots_Combs/Perms_Normal_Distro_3

Front

What is a complex fraction?

Back

A complex fraction is a fraction where the numerator, the denominator, or both contain fractions.

Front

What does a scatterplot represent?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them.

Front

What is the formula for permutations of n items taken r at a time?

Back

The formula is P(n, r) = n! / (n - r)!.

Front

What is the formula for combinations of n items taken r at a time?

Back

The formula is C(n, r) = n! / [r!(n - r)!].

Front

What is the total area under a normal distribution curve?

Back

The total area under a normal distribution curve is 1.

Front

How do you interpret a negative correlation in a scatterplot?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What is the mean in a normal distribution?

Back

The mean is the central value around which the data is distributed in a normal distribution.

Front

What is standard deviation?

Back

Standard deviation measures the amount of variation or dispersion in a set of values.

Front

How do you calculate the z-score?

Back

The z-score is calculated as z = (X - μ) / σ, where X is the value, μ is the mean, and σ is the standard deviation.

Front

What does the trend line in a scatterplot indicate?

Back

The trend line indicates the general direction of the data points and can be used for predictions.