Two runners are to race one lap on a circular track, the radius to the inside circle is 50m. the radius on the outside lane is 51m. how much of a head start should the runner on the outside get?

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

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin

Someone me i need with this stuff