7th GRADE MATH MAAP REVIEW

Front

What is a representative sample in statistics?

Back

A representative sample is a subset of a population that accurately reflects the characteristics of the whole population.

Front

What is the formula for the circumference of a circle?

Back

The circumference (C) of a circle is calculated using the formula C = 2πr, where r is the radius.

Front

What does the ratio of boys to girls mean?

Back

A ratio compares two quantities, showing how many times one value contains or is contained within the other. For example, a ratio of 2:3 means for every 2 boys, there are 3 girls.

Front

How do you find the median of a set of numbers?

Back

To find the median, arrange the numbers in ascending order and identify the middle number. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mean of a set of numbers?

Back

The mean is calculated by adding all the numbers together and dividing by the total count of numbers.

Front

What is random sampling?

Back

Random sampling is a technique where each member of a population has an equal chance of being selected, ensuring that the sample is unbiased.

Front

What is the difference between mean and median?

Back

The mean is the average of a set of numbers, while the median is the middle value when the numbers are arranged in order.

Front

How do you calculate the difference between two circumferences?

Back

To calculate the difference, subtract the smaller circumference from the larger circumference.

Front

What is a sampling method?

Back

A sampling method is a process used to select a subset of individuals from a population to estimate characteristics of the whole population.

Front

What is the importance of using a random sample?

Back

Using a random sample helps to eliminate bias and ensures that the sample accurately represents the population.