Question

please solve it please ​

Answer 1

Step-by-step explanation:

x         f         cf        fx

300     6         6        1800

375      8        14      3000

450      9        23      4050

525       12       35     6300

600      10       45     6000

Total     45               21150  

Median:

N = 45 (an odd number)

Median = 45+1/2

             = 23rd observation

From the table cumulative frequency equal to or just greater than 23 is 23. The corresponding observation is 450.

∴ Median = 450

Mean: total/ no

Mean = 470

Mode:

Empirical formula for finding mode is

Mode = 3Median - 2Mean

         = 3(450) - 2 (470)

         = 1350 - 940

Mode = 410