Which statement is true about this argument? argument : if a number is divisible by 2, then it is even. the number of 4 is divisible by 2. therefore, the number 4 is even. 1. the argument is not valid 2. the argument us valid by the law of detachment. 3. the argument is valid by the law of syllogism. 4. the argument is valid but doesn't follow the law of detachment nor syllogism.

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?