Mercer MS 7th Grade Math GMAS Review-Week 9

Front

What is the formula to calculate the percentage of a part compared to a whole?

Back

Percentage = (Part/Whole) x 100

Front

Define theoretical probability.

Back

Theoretical probability is the likelihood of an event occurring based on all possible outcomes, calculated as the number of favorable outcomes divided by the total number of outcomes.

Front

What does IQR stand for in statistics?

Back

IQR stands for Interquartile Range, which measures the spread of the middle 50% of a data set.

Front

How do you find the constant of proportionality in a graph?

Back

The constant of proportionality can be found by dividing the dependent variable by the independent variable at any point on the line.

Front

If 9 out of 25 fans are wearing hats, how do you find the expected number of fans not wearing hats in a larger group?

Back

Use the ratio of fans wearing hats (9/25) to find the expected number not wearing hats in a larger group by calculating (1 - (9/25)) * Total Fans.

Front

What is a random sample?

Back

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Front

Explain the concept of median in a data set.

Back

The median is the middle value when a data set is ordered from least to greatest. If there is an even number of observations, the median is the average of the two middle numbers.

Front

What is the difference between maximum and median in a data set?

Back

The maximum is the highest value in a data set, while the median is the middle value. They provide different information about the data's distribution.

Front

Define proportional relationship in mathematics.

Back

A proportional relationship is one where two quantities maintain a constant ratio or rate.

Front

What is the significance of the maximum value in a data set?

Back

The maximum value indicates the highest point in the data set, which can help identify outliers or the range of the data.