In a math contest, the contestants were given the following piecewise graph. For the final question, they were asked to write the piecewise function of the graph. Circle the name of the competitor with the correct answer.
(Sorry the names aren't in the pictures just find the right function)

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