Year 9 Science · Unit 4 · Lesson 12

Descriptive Analysis and Descriptive Statistics

Foundation Worksheet

Name
Date
Class

Learning Goals

Warm Up

Match it!

Draw a line from each word to its correct meaning.

Word

Mean Median Mode Range Outlier

Meaning

The middle value when data is ordered Highest value minus lowest value The sum of values divided by how many there are A value much larger or smaller than the rest The value that appears most often

Your Turn

Fill the gap

Choose the correct word from the word bank to complete each sentence. Two words will not be used.

mean median mode range outlier frequency summarise predict opinion

Descriptive statistics are numbers that a dataset. The is found by adding all the values and dividing by how many there are. The is the middle value once the data is put in order. The is the value that appears most often. The is the highest value minus the lowest value. A value that is much larger or smaller than the rest is called an . In a frequency table, the tells you how many times each value appears.

Show What You Know

1. A student counts the number of books read by 5 friends over the holidays: 3, 5, 5, 7, 10. Calculate the mean. Show your working.

Recall 2 marks

2. For the same dataset 3, 5, 5, 7, 10, write down the median, the mode and the range.

Recall 3 marks

Wrap Up

In one sentence, what was the main idea of this lesson?

HSCScience · Year 9 Science · Unit 4 · Lesson 12 · Foundation Worksheet