Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. which measure should shania use to find how much the scores on her tests vary, on average, from the mean score?

mode

mean absolute deviation

interquartile range

mean

Awall map has a scale of 128 miles = 6 inches. the distance between springfield and lakeview is 2 feet on the map. what is the actual distance between springfield and lakeview? 384 miles 512 miles 1.13 miles 42.7 miles

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?