6.SP.A.2 & 6.SP.A.3 Pre-test

What is data analysis?

• Data analysis is the process of collecting data from various sources.

• Data analysis is the process of inspecting, cleaning, transforming, and modeling data in order to discover useful information, draw conclusions, and support decision-making.

• Data analysis is the process of visualizing data using charts and graphs.

• Data analysis is the process of organizing data in a database.

What are measures of center in statistics?

• Mean, Median, Mode

• Minimum, Maximum, Quartiles

• Frequency, Variability, Skewness

• Range, Variance, Standard Deviation

What are measures of variability in statistics?

• Skewness, kurtosis, and percentiles

• Mean, median, and mode

• Range, variance, and standard deviation

• Correlation, regression, and coefficient of determination

What is a dot plot and how is it used in data analysis?

• A dot plot is a type of data visualization that uses dots to represent data points. It is used in data analysis to display the distribution of a dataset and identify patterns or outliers.

• A dot plot is a type of data visualization that uses bars to represent data points. It is used in data analysis to compare different categories of data.

• A dot plot is a type of data visualization that uses lines to represent data points. It is used in data analysis to display the relationship between variables.

• A dot plot is a type of data visualization that uses shapes to represent data points. It is used in data analysis to show the trend of a dataset over time.

What is a histogram and how is it used in data analysis?

• A histogram is a type of bar chart used to display categorical data.

• A histogram is a graphical representation of the distribution of a dataset. It is used in data analysis to visualize the frequency or count of data points within specified intervals or bins.

• A histogram is a statistical measure that represents the average value of a dataset.

• A histogram is a tool used to analyze the correlation between two variables in a dataset.

Which measure of center is affected by outliers?

• median

• mode

• range

• mean

What is the range in statistics?

• The range in statistics is the mode of a dataset.

• The range in statistics is the median of a dataset.

• The range in statistics is the average of all the values in a dataset.

• The range in statistics is the difference between the largest and smallest values in a dataset.

Describe the shape of the graph.

• Skewed right
• Skewed left
• Uniform
• Symmetrical

Describing the shape of a data set that is a mirror image one both sides of the center point.

• symmetric
• unimodal
• skewed
• uniform

Which of the following are reasons to ask statistical questions?

• Data can help identify problems to solve.

• Data can help businesses make better decisions.

• Data can help people make informed choices.