The length of the hypotenuse, line segment AC, in right Wh
triangle ABC is 25 cm. The length of line segment BC
is 15 cm.

which is the appropriate measure if angle ABC

a 31.0
b 36.9
c 53.1
d 59.0

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