Sub to Yvngxchris on You/Tube

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

Type the next three numbers in a sequence 80, 90, 85, 95, 90, 100, 95, 105

Draw a number line to represent the inequality y< 64