When evaluating the expression 37 - (23 +19) - 14, what should be entered into the calculator first?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

Can someone answer this question for me