7.1 Lesson Flashcard Recovery

Front

What is an interval?

Back

An interval is a range of numbers.

Front

How many cities have temperatures between 70 degrees and 99 degrees?

Back

44

Front

What percent of the trees are 5-9 feet tall?

Back

18.9%

Front

How many students have more than 1,000 songs on their MP3 player?

Back

16

Front

How tall will the 25–29 bar be in Charlene's histogram?

Back

11

Front

Define a histogram.

Back

A histogram is a graphical representation of the distribution of numerical data, using bars to show the frequency of data within certain intervals.

Front

What is the purpose of a line plot?

Back

A line plot is used to display data along a number line, showing the frequency of each value.

Front

What does it mean to measure central tendency?

Back

Measuring central tendency refers to finding a central value (mean, median, mode) that represents a set of data.

Front

What is the mean of a data set?

Back

The mean is the average of a set of numbers, calculated by dividing the sum of all values by the number of values.

Front

What is the median in a data set?

Back

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