RQ4 - MSRCENTRAL TENDENCY AND POSITION

Margie has grades 86, 68 and 79 in her first three tests in Algebra. What grade

must she obtain on the fourth test to get an average of 78?

If the heights in centimetres of a group of students are 180, 180, 173, 170, and 167, what is the mean height of these students?

83            72           87           79           82           77           80           73           86           81           79           82           79           74           74

What is the lower quartile?

83            72           87           79           82           77           80           73           86           81           79           82           79           74           74

What is the 75th percentile?

83            72           87           79           82           77           80           73           86           81           79           82           79           74           74

What is the second decile?

What is the position of the third quartile?

83            72           87           79           82           77           80           73           86           81           79           82           79           74           74

(express your answer with th for example "13th")

With the data sets:  33, 25, 42, 25, 31, 37, 46, 29, 38. What is the third quartile (Upper Quartile) of the data using Mendenhall and Sincich method??

What is the median of this set of score? (1, 2, 5, 6, 8, 8, 9, 12, 15)

Find the upper quartile respectively of the following scores using Mendenhall and Sincich method: 1, 3, 7, 7, 16, 21, 27, 30, 31.

Find the lower quartile respectively of the following scores using Mendenhall and Sincich method: 1, 3, 7, 7, 16, 21, 27, 30, 31.