The value of 30+40−50 is .
Find the value of f if the mean of the following distribution is 25.2.
An incomplete frequency distribution is given as follows:
Variable
10-20
20-30
30-40
40-50
50-60
60-70
70-80
Total
Frequency
12
30
?
65
25
18
229
Given the median value is 46, determine the missing frequencies using the median formula.
Find the mode of the following frequency distribution: Marks10−2020−3030−4040−5050−60Frequency1235452513
The value of 30+40−50 is