District Assessment #3 Review 12/10

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots plotted on a number line, representing the frequency of data points.

Front

How do you calculate the percentage of a group?

Back

To calculate the percentage, divide the part by the whole and multiply by 100. For example, if 7 out of 10 students have 5 or more vowels, the percentage is (7/10) * 100 = 70%.

Front

What does it mean for two triangles to be similar?

Back

Two triangles are similar if their corresponding angles are equal and their corresponding sides are in proportion.

Front

What is an inequality?

Back

An inequality is a mathematical statement that shows the relationship between two expressions that are not equal, using symbols like <, >, ≤, or ≥.

Front

How do you solve the inequality 3x + 4 < 13?

Back

To solve, subtract 4 from both sides to get 3x < 9, then divide by 3 to find x < 3.

Front

What is the meaning of 'corresponding sides' in similar triangles?

Back

Corresponding sides are the sides of two triangles that are in the same relative position to each other.

Front

How do you interpret data from a dot plot?

Back

To interpret data from a dot plot, count the number of dots above each value to determine the frequency of each data point.

Front

What is the formula for finding the percentage of students who meet a certain criterion?

Back

Percentage = (Number of students meeting the criterion / Total number of students) * 100.

Front

What is the significance of the number of vowels in a name?

Back

The number of vowels in a name can be used for various statistical analyses, such as determining patterns or preferences among a group.

Front

How do you find the total number of students represented in a dot plot?

Back

To find the total number of students, add the frequencies of all the data points represented in the dot plot.