middle class upper class

Based on the data in the stem and leaf plot, find the sum of the average of lower quartile and the middle quartile and the average of middle quartile and the upper quartile. => 50 or 40 or 43 or 44..

What are the values of lower quartile and upper quartile of a data set, if its least value is 171, middle quartile is 257 and the greatest value is 304? => 171, 304 or 171, 257 or 257, 304 or Cannot be determined..

The position of the greatest value in a set of data is 11. What are the positions of the lower quartile, the middle quartile and the upper quartile? => 1, 3, 6 or 3, 6, 9 or 3, middle of 5 th and 6 th positions, 10 or Cannot be determined..

Find the average of the lower, the middle and the upper quartiles of the data. 15, 18, 23, 12, 10, 0, 6, 7, 22 and 12 => 12.333 or 9.333 or 15.333 or 16.633..

The table shows the number of immigrants to the U.S. from various countries during 1981- 1990. Find the sum of the lower, the middle and the upper quartiles of the data. => 830 or 1082 or 1081 or 1000..

What is the ratio of lower quartile to middle quartile to upper quartile for the data set? 2, 3, 9, 10, 11, 12, 15, 17, 6, 7, 8, 9, 17, 23, 24, 19, 22, 22 and 23 => 4 : 6 : 11 or 2 : 3 : 4 or 4 : 6 : 3 or 1 : 2 : 3..

What is the ratio of lower quartile to middle quartile to upper quartile for the data set? 2, 3, 9, 10, 11, 12, 15, 17, 6, 7, 8, 9, 17, 23, 24, 19, 22, 22 and 23 => 2 : 3 : 4 or 1 : 2 : 3 or 4 : 6 : 3 or 4 : 6 : 11..

The simultaneous pressure of air in the inner pipe and water of the outermost pipe forces the sulphur froth to rise up while the earthly impurities are left behind (Fig13.21). ..

Each arm contains 30 bones namely, humerus , in the upper arm, radius and ulna in the forearm, 8 carpals in the wrist 5 metacarpals in the palm, and 14 phalanges in the fingers. The distal phalange supports a broad, arched horny nai..