{1, 4, 9, 4, 10, 8, 42} What is the best measure of center for this data set? O mean because there is an outlier O mean or median because there is no outlier O median because there is an outlier O mode because there is an outlier ​

Hi my sisters and brothers can tell me the answer because i don’t understand the question

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?