Math & Measurement Practice Test A

Front

What is the user size classification that shows IBM having a higher percentage of shares than Apple?

Back

Large & Medium

Front

How do you convert a decimal measurement in inches to a fractional measurement?

Back

To convert a decimal to a fraction, identify the whole number and the decimal part, then convert the decimal part to a fraction. For example, 10.375 inches converts to 10 3/8 inches.

Front

What is the median of a data set?

Back

The median is the middle value of a data set when it 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

How do you simplify an expression?

Back

To simplify an expression, combine like terms, perform operations in the correct order (PEMDAS/BODMAS), and reduce fractions if possible.

Front

What is the solution to the equation x - 5 = -20?

Back

The solution is x = -15.

Front

What is the definition of a median in statistics?

Back

The median is the value separating the higher half from the lower half of a data sample.

Front

What is the process for converting a decimal to a fraction?

Back

1. Write the decimal as a fraction with 1 as the denominator. 2. Multiply both the numerator and denominator by 10 for each digit after the decimal point. 3. Simplify the fraction.

Front

What does it mean to simplify an expression in mathematics?

Back

Simplifying an expression means to reduce it to its simplest form by combining like terms and eliminating unnecessary operations.

Front

What is the formula for finding the median in a data set with an odd number of values?

Back

For an odd number of values, the median is the value at the position (n + 1) / 2, where n is the number of values.

Front

What is the formula for finding the median in a data set with an even number of values?

Back

For an even number of values, the median is the average of the two middle values.