Abirthday party host planned for 20 people, but 17 actually attended. what is the percent error?

Step-by-step explanation:

Givens

The percentage error can be found with the following formula:

Where refers to the expected quantity and refers to the quantity in the experiment when it happens.

So, in this case, we can deduct that the true value is 20 and the observed value is 17. Replacing them, we have

Therefore, the percentage error is 15%.

option 1

data plot with   3 dots over 33, 1 dot over 34, 2 dots over 35, no dot over 36, 1 dot over 37, 2 dots over 38, 4 dots over 39, and 2 dot over 40.