Virtual Fall 2024 Final Exam

Front

What is an independent variable in an experiment?

Back

The independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

In the context of an experiment, how does the amount of water affect the height of bean plants?

Back

The amount of water is the independent variable that influences the growth (dependent variable) of the bean plants.

Front

What is the formula for compound interest?

Back

A = P(1 + r/n)^(nt), where A is the amount of money accumulated after n years, including interest. P is the principal amount (initial investment), r is the annual interest rate (decimal), n is the number of times that interest is compounded per year, and t is the number of years the money is invested.

Front

Calculate the future value of an investment of $3,686 at 7% interest compounded quarterly for 18 years.

Back

$12,853.86

Front

What is sales tax?

Back

Sales tax is a consumption tax imposed by the government on the sale of goods and services, calculated as a percentage of the purchase price.

Front

How do you calculate the total cost including sales tax?

Back

Total Cost = Price + (Price x Sales Tax Rate). For example, if the price is $35.50 and the sales tax is 4.5%, the total cost is $35.50 + ($35.50 x 0.045) = $37.10.

Front

What is the formula to convert a fraction to a percentage?

Back

Percentage = (Fraction x 100). For example, to convert 17/50 to a percentage, calculate (17/50) x 100 = 34%.

Front

What does the y-axis represent in a bar graph?

Back

The y-axis typically represents the frequency or number of occurrences of the categories shown on the x-axis.

Front

What is a bar graph used for?

Back

A bar graph is used to represent categorical data with rectangular bars, where the length of each bar is proportional to the value it represents.

Front

Define 'dependent variable' in an experiment.

Back

The dependent variable is the variable that is measured and affected in the experiment, responding to changes in the independent variable.