Assignment #3 Data Distributions

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, meaning the data is evenly distributed around the mean.

Front

What does it mean for a distribution to be skewed right?

Back

A right-skewed distribution has a longer tail on the right side, indicating that there are a few high values that pull the mean to the right of the median.

Front

What does it mean for a distribution to be skewed left?

Back

A left-skewed distribution has a longer tail on the left side, indicating that there are a few low values that pull the mean to the left of the median.

Front

What is a bell curve?

Back

A bell curve, or normal distribution, is a symmetrical distribution where most of the data points cluster around the mean, with fewer points as you move away from the 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

What is a gap in data?

Back

A gap in data refers to a range of values where no data points exist, indicating a break in the distribution.

Front

What is a cluster in data?

Back

A cluster in data refers to a group of data points that are closely packed together, indicating a concentration of values in that range.

Front

What is the difference between mean and median?

Back

The mean is the average of all data points, while the median is the middle value when the data points are arranged in order.

Front

What is a uniform distribution?

Back

A uniform distribution is one where all outcomes are equally likely, resulting in a flat graph.

Front

How can you identify a skewed distribution from a graph?

Back

A skewed distribution can be identified by the direction of the tail; if the tail is longer on the right, it is skewed right, and if it is longer on the left, it is skewed left.