7th Grade Math Unit 5 Review Challenge

What does a representative sample imply about the selection process?

• It favors certain outcomes over others.

• Every individual has an equal chance of being selected.

• Only a specific group is targeted.

• It is selected based on convenience.

What is the main focus of Chapter 10 in the curriculum?

• Learning calculus fundamentals

• Studying geometric shapes

• Analyzing populations and samples

• Understanding algebraic expressions

Which plot is used to compare data distributions?

• Histogram

• Pie chart

• Line graph

• Dot plot

How can a sample be made more representative?

• By reducing the sample size

• By increasing the sample size

• By using a convenience sampling method

• By choosing only specific types of data

What is the median used to measure in a dataset?

• The difference between highest and lowest values

• The middle value when data is ordered

• The most frequently occurring value

• The average value

In the context of data analysis, what does 'spread' refer to?

• The central tendency of the data

• The variability or dispersion of the data

• The skewness of the data

• The peak of the data distribution

What statistical measure is used to find the average distance from the mean?

• Mean absolute deviation

• Median

• Mode

• Range

What does a box plot primarily show about a dataset?

• The mean and mode

• The frequency of each data point

• The correlation between variables

• The range and interquartile range

What does a longer box in a box plot indicate about the data?

• Higher average values

• Less variability

• More variability

• Lower minimum values

What is the purpose of using a mean absolute deviation in data analysis?

• To calculate the total sum of all data points

• To identify the median of the dataset

• To find the data point that occurs most frequently

• To determine the consistency of data points around the mean