Q1Mean of 4, 6, 8, 10:

Q2Median of 3, 7, 5, 9, 1 (sorted):

Q3Mode of 2, 4, 4, 6, 8, 4, 10:

Q4Range of 12, 5, 18, 9, 7:

Q568% of data lies within how many standard deviations of the mean (normal)?