What would the percentage error be if a person predicted that there were 38 jelly bean in a container, but when they were counted, it was found that there were actually 40 beans in the bottle?

To calculate the percentage error, we first need to find the absolute error, which is the absolute value of the difference between the predicted value and the actual value.

Absolute error = |predicted value - actual value|
Absolute error = |38 - 40|
Absolute error = 2

Next, we calculate the percentage error using the formula:

Percentage error = (absolute error / actual value) x 100
Percentage error = (2 / 40) x 100
Percentage error = 0.05 x 100
Percentage error = 5%

Therefore, the percentage error in this case would be 5%.