STATISTICS 1st SEMESTER EXAM

Front

Solve the following system by using elimination: 4x + 3y = 7 and 2x - 3y = 1

Back

(1, 1)

Front

What is the median of the Stem-and-Leaf Plot?

Back

43.5

Front

Solve the equation: |2x - 3| = 15

Back

x = -6 or x = 9

Front

About 50 % of the data values are greater than what value?

Back

15

Front

What is the MEDIAN of this data?

Back

90

Front

Definition of Median in Statistics

Back

The median is the middle value of a data set when it is ordered from least to greatest.

Front

Definition of Elimination Method

Back

A method for solving systems of equations by removing one variable, making it easier to solve for the other.

Front

What is a Stem-and-Leaf Plot?

Back

A graphical representation of data that shows the distribution while retaining the original data values.

Front

Definition of Absolute Value

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction.

Front

What does it mean for data to be normally distributed?

Back

Data is normally distributed when it forms a bell-shaped curve, with most values clustering around the mean.