Flashcard 1 Prep

Front

What is the Excel function to find the population standard deviation?

Back

STDEV.P(list of values)

Front

What does N represent in statistics?

Back

Represents the number of values in a population

Front

What is the relationship between the standard deviation and variance?

Back

You can take the square root of the variance to get the standard deviation.

Front

What does a left skewed distribution indicate about the data?

Back

The tail on the left side of the distribution is longer or fatter than the right side.

Front

What does a normal distribution look like?

Back

A symmetric bell-shaped curve where the mean, median, and mode are all equal.

Front

Where is the mean, median, and mode located in a normal distribution?

Back

Mean = Median = Mode.

Front

What is the Excel function to find the sample standard deviation?

Back

STDEV.S(list of values)

Front

What does variance measure in a dataset?

Back

Variance measures the spread of data points around the mean.

Front

How do you calculate variance from standard deviation?

Back

Variance is the square of the standard deviation.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample is a subset of the population.