A study of the relationship between a student’s test score o…

A study of the relationship between a student’s test score on a Monday is linearly related to the number of hours a student watched television over the previous weekend. A researcher randomly selects 15 students from community colleges in the region and records both variables. She uses the LinReg feature in her calculator to get the following: n = 15,  r = 0.576,  y-hat = -4.067x + 93.97,  y-bar = 73.25 Use the researcher’s result to decide if the variables are linearly related, and then make the best prediction for a student’s test score when the student watched 6 hours  of television over the previous weekend.

The anatomical snuffbox is an important landmark for palpati…

The anatomical snuffbox is an important landmark for palpation of the scaphoid bone. What tendons form the anatomical snuffbox? Extensor pollicis brevis Extensor carpi radialis Extensor pollicis longus Flexor carpi radialis Flexor pollicis longus Abductor pollicis longus Abductor pollicis brevis

The following table compares the use of a helmet and the ris…

The following table compares the use of a helmet and the risk of head injuries given data that was gathered from 100 Alpine skiers and snowboarders.  Head Injury No Head Injury Total Wore Helmet 3 18 21 No Helmet 65 14 79 Total 68 32 100 A person is selected at random from this group. What is the probability that the person selected had a head injury GIVEN that they did NOT wear a helmet?