Statistical Questions

Front

What is a statistical question?

Back

A statistical question is one that anticipates variability in the data and requires data collection to answer it.

Front

What does it mean for data to be skewed right?

Back

Data is skewed right when the tail on the right side of the distribution is longer or fatter than the left side, indicating that there are a few unusually high values.

Front

What is the mode in a data set?

Back

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

Front

How do you determine if a question is statistical?

Back

A question is statistical if it requires data that varies and can be answered with numerical or categorical data.

Front

What is the difference between a statistical question and a non-statistical question?

Back

A statistical question requires data that varies, while a non-statistical question has a fixed answer.

Front

What type of data is required to answer the question: 'On average, how many books does each person in the United States read each year?'

Back

This question requires numerical data.

Front

What does it mean for data to be symmetrical?

Back

Data is symmetrical when it is evenly distributed around a central value, meaning the left and right sides of the distribution are mirror images.

Front

What is the significance of the median in a data set?

Back

The median is the middle value when the data set is ordered, and it divides the data into two equal halves.

Front

How can you identify the range of a data set?

Back

The range is calculated by subtracting the smallest value from the largest value in the data set.

Front

What is a dot plot?

Back

A dot plot is a simple visual representation of data where each dot represents a value or a count.