The distance between the 2 cities is 225 kilometers. a passenger car and a truck drove from the two cities at the same time. they met after 2.5 hours. the speed ratio of the truck to the passenger car is known to be 4:5. how many kilometers per hour does the truck travel

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

What is perpendicular to y=-1/2x+11

Kilgore trout creates a new scale to diagnose depression. however, his scale only assesses one symptom of depression while ignoring others. which of the following is his new scale most likely lacking? a) test-retest reliability b) discriminant validity c) criterion validity d) alternate-forms reliability e) content validity f) none of the above