Look at the following numbers:
If we add the number 10 to the group, then what will happen to the average?
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Look at the following numbers:
If we add the number 10 to the group, then what will happen to the average?
To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: Calculate the sum and average of the original numbers (2, 3, 4, 5).
Sum =
Average =
Step 2: Include the number 10 in the group.
New sum =
New average =
Step 3: Compare the averages.
Original average was 3.5, and the new average is 4.8.
The new average (4.8) is greater than the original average (3.5), which means the average will increase.
Therefore, the correct choice is: It will increase.
It will increase.
Calculate the average of \( 10 \) and \( 12 \).
Compare the new number to the current average! If it's higher than the average, the average increases. If it's lower, the average decreases. If it equals the average, no change occurs.
For verification, yes! But you can predict the direction of change by comparing the new number to the current average. In our case, 10 > 3.5, so we know the average will increase before calculating.
The average stays the same! Adding a value equal to the current average doesn't change it. For example, adding 3.5 to our set {2,3,4,5} keeps the average at 3.5.
Because 10 is much larger than our current average of 3.5! The bigger the difference between the new number and current average, the more dramatic the change. Adding 4 would barely increase it, but adding 10 creates a big jump.
Yes! New average = . So:
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