If x and y are directly proportional then what will be the value of constant of proportionality?
x1234y10203040
110
12
15
25
Given that x and y are directly proportional.
So xy = constant
∴ xy=110=220=330=440
Calculate the mean and median for the following continuous frequency distribution. Classfi 0−10610−20820−302030−402540−501550−601060−704
Question 2 If the median of the distribution given below is 28.5, find the values of x and y.
Class intervalFrequency0−10510−20x20−302030−401540−50y50−605Total60
If the median of the distribution is given below is 28.5, find the values of x and y.
Class interval
Frequency
0 − 10
5
10 − 20
x
20 − 30
20
30 − 40
40 − 50
y
50 − 60
Total
60