Question

math 003. fall 2025
4 - pie charts and grams
question 4, 7.1.15
the pictograph shows the annual number of wildfires in a region between 2000 and 2005. what was the average annual number of wildfires from 2003 to 2005?
= 12,000 fires
the average annual number of wildfires was from 2003 to 2005.

Explanation:

Step1: Count fire - symbols for 2003 - 2005

2003 has 7 symbols, 2004 has 8 symbols, 2005 has 6 symbols.

Step2: Calculate total number of symbols

$7 + 8+6=21$ symbols.

Step3: Multiply by value of each symbol

Since each symbol represents 12000 fires, the total number of fires is $21\times12000 = 252000$ fires.

Step4: Calculate the average

The time - period is 3 years. The average is $\frac{252000}{3}=84000$ fires.

Answer:

84000