Blurting

Median

Median

The middle value of a set of data when arranged in order; for an even number of values, it is the average of the two middle numbers.

Mean

The sum of all values in a set divided by the total number of values; also known as the arithmetic average.

Mode

The value that appears most frequently in a set of data; there can be multiple modes or none at all.

Range

The difference between the highest and lowest values in a set of data.

Quartiles

Q1 represents the 25th percentile, Q3 represents the 75th percentile, and Q2 is the median (50th percentile) of a data set.

Distribution

Refers to how data is spread out; can be symmetrical, skewed right, or skewed left based on the box plot.

IQR

Interquartile Range, calculated as the difference between the third quartile (Q3) and the first quartile (Q1) in a data set.

Negative Exponent Laws

When an integer or fraction base is raised to a negative exponent, it is equivalent to the reciprocal of the same base raised to the positive exponent.

Distributive Property

Involves multiplying a number or variable outside the brackets to all terms inside the brackets, then simplifying by collecting like terms.