Statistics Review

What is a histogram?

• A type of pie chart that shows percentages of a whole.

• A type of bar graph that represents the frequency distribution of numerical data, showing how many data points fall within certain ranges.

• A line graph that displays data trends over time.

• A scatter plot that shows the relationship between two variables.

What is a scatter plot?

• A type of bar graph that displays categorical data.

• A graph that shows the relationship between two quantitative variables, with points plotted to represent the values of each variable.

• A pie chart that represents parts of a whole.

• A line graph that shows trends over time.

What is a statistical question?

• A question that can be answered with a single data point.

• A question that anticipates variability in the data and can be answered by collecting data.

• A question that has a definitive yes or no answer.

• A question that requires no data to answer.

What is a 'Line of Best Fit'?

• A straight line that best represents the data on a scatter plot and shows the trend of the data points.

• A curved line that connects all the data points in a scatter plot.

• A line that only connects the highest and lowest points in a scatter plot.

• A line that represents the average of all data points in a scatter plot.

What is a bar graph?

• A type of chart that uses lines to represent data trends.

• A visual representation of data using bars of different heights or lengths to show the frequency of categories.

• A method of organizing data in a table format.

• A graphical representation of data using pie slices.

What is a sample in statistics?

• A sample is a subset of the population that is used to represent the whole population in a study.

• A sample is the entire population used in a statistical analysis.

• A sample is a random selection of data points from a dataset.

• A sample is a method of collecting data from every individual in a population.

What makes a question statistical?

• A question is statistical if it involves a population and is measurable.

• A question is statistical if it can be answered with a simple yes or no.

• A question is statistical if it has a definitive answer that does not vary.

• A question is statistical if it involves a population, is measurable, and has variability.

What is the purpose of a survey in statistics?

• To collect data from a sample of individuals to understand opinions, behaviors, or characteristics of a larger population.

• To analyze historical data and predict future trends.

• To conduct experiments in a controlled environment.

• To gather qualitative data through interviews and focus groups.

How do you calculate the range of a data set?

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

• The range is calculated by adding the smallest number in the data set to the largest number.

• The range is the average of the smallest and largest numbers in the data set.

• The range is calculated by multiplying the smallest number in the data set by the largest number.

What is a mode in statistics?

• The average value of a data set.

• The value that appears most frequently in a data set.

• The middle value when data is ordered.

• The range of values in a data set.