Question

Solve pls.....

Answer 1

Class Frequency
200 – 299 12
300 – 399 19
400 – 499 6
500 – 599 2
600 – 699 11
700 – 799 7
800 – 899 3
Total Frequency 60

If this a frequency table then find out class marks- mid point and class width

Answer 2

??

Answer 3

Solve that.......

Answer 4

It's a question of "Statistics"

Answer 5

width = 300-200 = 100 i beleive

Answer 6

marks are what, average between classes? or average of each class?

Answer 7

Average between each classs

Answer 8

http://people.richland.edu/james/lecture/m170/ch02-def.html

Answer 9

L1c to H1c = fq
L2c to H2c = fq
L3c to H3c = fq


since the marks are the same "distances" in each case:

L2c - H1c
-------- = class mark
2

Answer 10

add that to the H1c or subtract it from the L2c, should be the same

Answer 11

midpoints are just:

H1c-L1c
-------
2

Answer 12

200 + 300 - 1
------------ = 100 + 150 - 1/2 = 249.5 should be
2 49.5 from the lower ends for midpoints

Answer 13

299.5 would seem appropriate for marks then .....