ASAP Ms. Gray studied her students' history test scores and sleeping habits. She found that students who slept less tended to earn lower scores on the test. What conclusion should she make?

There is no correlation between test score and amount of sleep.

There is a correlation between test score and amount of sleep. There is probably also causation. This is because there is a decrease in a student's test score with a decrease in the amount of sleep.

There is a correlation between test score and amount of sleep. There may or may not be causation. Further studies would have to be done to determine this.

Our star pitcher, foster enlight, can throw a pitch so fast that it gets to the catcher’s mitt before it leaves foster’s fingers! if the team wins a game then the probability that foster was pitching is 0.8 but only if foster had at least one day’s rest since his last pitching assignment. if foster does not have a day off and the team still wins, the probability that foster was pitching drops by half of what it was on the previous day. if the team wins three games in succession from the toronto tachyons and foster pitched in game #2, what is the probability that he pitched in one or more of the other games? (assume that foster did not pitch on the day before the first game of this three game series.)