Topic 4 Review

Front

What is the formula to calculate earnings based on hours worked and hourly wage?

Back

Earnings = Hours Worked × Hourly Wage

Front

What is slope-intercept form of a linear equation?

Back

The slope-intercept form is given by y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you determine the number of students who like two different food items?

Back

You can use a survey or data table to count the number of students who selected both items.

Front

What is relative frequency?

Back

Relative frequency is the ratio of the number of times an event occurs to the total number of trials or observations.

Front

How do you calculate the percentage of a subgroup within a larger group?

Back

Percentage = (Number of subgroup / Total number) × 100.

Front

If Joe worked 30 hours and earned $600, what is his hourly wage?

Back

Hourly Wage = Earnings / Hours Worked = $600 / 30 = $20.

Front

What does the slope of a line represent in a graph?

Back

The slope represents the rate of change of the dependent variable with respect to the independent variable.

Front

How can you find the y-intercept of a linear equation?

Back

Set x = 0 in the equation and solve for y.

Front

What is the significance of the y-intercept in a real-world context?

Back

The y-intercept represents the starting value of the dependent variable when the independent variable is zero.

Front

How do you interpret a relative frequency of about 44%?

Back

It means that approximately 44% of the surveyed group falls into the specified category.