JHS1 HW MATH 13-17 April 2026

What is the mean of 10, 12, 14, 16?

• 13

• 14

• 12

• 15

Which measure is NOT affected much by extreme values?

• Median

• Mean

• Mode

• Total

A data set has no repeated values. What is its mode?

• The smallest number

• The largest number

• None

• 0

What is the mean of 5, 5, 5, 5?

• 7

• 5

• 4

• 6

What is the main purpose of a bar chart?

• To decorate

• To count numbers

• To compare quantities

• To tell stories

In a bar chart, what does the height of each bar represent?

• Color

• Title

• Value or quantity

• Shape

Why is a key important in a pictogram?

• To make it colorful

• To decorate

• To make it bigger

• To explain the value of each symbol

A data set is 3, 4, 5, 6, 20; compare the mean, median, and mode, and decide which value best represents the data.

(a)  

A data set has mean 10 and median 15; analyze what this tells you about the data distribution.

• The data has no outliers affecting center

• The data is symmetric with no skew

• The data is skewed with lower values pulling mean down

• The data is skewed with higher values pulling mean up

Compare the advantages of using a pictogram and a bar chart in presenting data, and explain when each should be used.

• Pictograms are more accurate; use for detailed data

• Bar charts are playful; pictograms allow exact values

• Both are equally precise; use whichever looks nicer

• Pictograms are engaging; bar charts are more accurate