SUMMATIVE TEST 1

What is the average value of a set of numbers called?

• Median

• Mean

• Mode

• Range

What is the middle value in a list of numbers when arranged in ascending order?

• The middle value is the maximum value in the list

• The middle value is the sum of all values divided by the total count

• The middle value is always the first value in the list

• The middle value in a list of numbers when arranged in ascending order is the value at index (n-1)/2 for odd n, and the average of values at indices n/2 and n/2 - 1 for even n.

Which value appears most frequently in a set of data?

• The median value in the set of data.

• The average value in the set of data.

• The least common value in the set of data.

• The value that appears most frequently in the set of data.

What is the meaning of statistics?

• Statistics is the study of cooking recipes

• Statistics is the study of ancient history

• Statistics is the study of collecting, analyzing, interpreting, presenting, and organizing data.

• Statistics is the study of political science

What divides a set of data into four equal parts?

• Quadrants

• Dividers

• Segments

• Quartiles

What divides a set of data into ten equal parts?

• Deciles

• Quartiles

• Medians

• Percentiles

What divides a set of data into hundred equal parts?

• Quartiles

• Deciles

• Medians

• Percentiles

Which branch of statistics deals with the collection, analysis, interpretation, presentation, and organization of data?

• Inferential Statistics

• Descriptive Statistics

• Prescriptive Statistics

• Predictive Statistics

What is the 25th percentile of a data set?

• The mode of the data set

• The correct answer for the 25th percentile of a data set.

• The 50th percentile of the data set

• The mean of the data set

What is the 75th percentile of a data set?

• The mean of the data set

• The mode of the data set

• Correct answer for the question

• The range of the data set