mid values of class interval is 10 15 20 25 find the lower limit of first class interval
Answers
Answer: 7.5 - 12.5
12.5 - 17.5
17.5 - 22.5
22.5 - 27.5
Step-by-step explanation:
The Mid-Value ,That is, The Class Mark is given as:-
10
15
20
25
So, for finding the class intervals,
Find the difference of the 2nd Class Mark and the 1st Class Mark or the 2nd Class Mark and the 3rd Class Mark or the 3rd and the 4th Class Mark ,That is,
15-10 or 20-15 or 25-20 , the difference will be 5
Now, Divide the Difference by 2. Thus, the number obtained will be 5/2=2.5
So, after obtaining the figure,
To find the 1st Lower Class Limit, subtract 10-2.5= 7.5
To find the 1st Upper Class Limit, add 2.5 + 10= 12.5
To find the 2nd Lower Class Limit, subtract 15-2.5= 12.5
To find the 2nd Upper Class Limit, add 2.5 + 15= 17.5
To find the 3rd Lower Class Limit, subtract 20-2.5= 17.5
To find the 3rd Upper Class Limit, add 2.5 + 20= 22.5
To find the 4th Lower Class Limit, subtract 25-2.5= 22.5
To find the 4th Upper Class Limit, add 2.5 + 25= 27.5
Thus, the class intervals will be:
7.5 - 12.5 Class Mark(10)
12.5 - 17.5 Class Mark(15)
17.5 - 22.5 Class Mark(20)
22.5 - 27.5 Class Mark(25)
Answer:
I don't know the answer.