Calculate the average of and .
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Calculate the average of and .
To solve this problem, we'll follow these steps:
Let's work through each step:
Step 1: The numbers we need to average are and .
Step 2: We use the formula for the average of two numbers:
where and .
Step 3: Plug these values into the formula:
Therefore, the average of and is .
3
If the balls below are divided so that each column in the table contains an equal number, then how many balls will there be in each column?
The average represents the middle value that would make all numbers equal. Since you have two numbers (1 and 5), you divide their sum by 2 to find what value would be exactly in between them.
Your average should always be between the smallest and largest numbers. Since 3 is between 1 and 5, it makes perfect sense! If your answer is outside this range, check your work.
The same formula works! Add all the numbers together, then divide by how many numbers you have. For three numbers, divide by 3; for four numbers, divide by 4, and so on.
Yes! For any two numbers, the average is always the number exactly halfway between them. You can think: what number is the same distance from both 1 and 5? That's 3!
This is just math notation! a and b represent your two numbers. So means add 1 and 5, then divide by 2.
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