Ms. Omar runs the school tennis club. She has a binof the tennis balls and rackets. For every tennis balls in the bin, there are 3 tennis rackets. Draw a model to show the ration of tennis balls to tennis rackets.

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