Corey bought 2\dfrac122 2
1

2, start fraction, 1, divided by, 2, end fraction liters of paint for \$60$60dollar sign, 60.
What was the cost per liter of paint?
\$$dollar sign

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