Explanation

The median is an average which is the middle value when figures are arranged in order of magnitude, e.g. These are the marks obtained by a group of students.
Solution : Rearrange 30, 40, 45, 50, 55, 60, 65, 80, 85. Therefore the median is 55.

Merits of the median are:
(i) Computation is easy.
(ii) Median gives a clear idea of the distribution of the data.
(iii) Median can also be graphically obtained.
(iv) It does not use all the values in the distribution.
(v) Calculation is easy to comprehend or understand.

Demerits of the median are:
(i) Re-arrangement may be cumbersome when large data are involved.
(ii) The data must be well arranged before computation.
(iii) There is limit to its usefulness in statistical calculations.

• a ship sails 340km in direction 225⁰, then sails 570km in the direction 035⁰. how far is the final position... Answer this

  2 Answers   ·   Mathematics   ·   1 day ago
• Calculate the mass of iron (ii) sulphide required to react with dilute HCl to provide 112cm3 of H2S gas at... Answer this

  3 Answers   ·   5 years ago
• I whant to know we're I supposed to be? Answer this

  1 Answers   ·   1 day ago