... the data 4, 6, 7, 7, 8, 9, 13, find the mean, median, mode, and range.Mean: The sum of the numbers is 54. Since there are seven numbers, divide by 7 to find themean. 54 ÷ 7 = 7. 71.Median: The ... least common multiple is used.Exampleᎏ13ᎏ+ ᎏ2 7 ᎏThe least common denominator for 3 and 7 is 21.(ᎏ13ᎏ×ᎏ 7 7ᎏ) + (ᎏ2 7 ᎏ×ᎏ33ᎏ) Multiply the numerator and denominator ... order from least to greatest, so simply find the middle num-ber. 7 is the middle number.Mode: 7 appears the most often and is the mode.Range: 13 − 4 = 9.– ACT MATH TEST PRACTICE–148...