B because it’s a random sample and it’s not biased
She should use Mean. That is when you add together all of the numbers, then divide by the number of numbers. Her average grade is 80.75, or rounded it is 81.
Answer:
No, the bolt won't fit into the hole
Step-by-step explanation:
We need to convert the diameter of the bolt into decimal by dividing:
2/9 = 0.222...
The hole has diameter of 0.2
<em>Hence, 0.222 is larger than 0.2, so the bolt won't fit.</em>