00:01
Hello students, according to the given question we have to find out the quartile values.
00:07
So from the given histogram we have the data that is class and frequency values we have to calculate midpoint for the class and cumulative frequency.
00:19
So here it is from 0 to 10, 10 to 20, 20 to 30, 30 to 40, 40 to 50, 50 to 60, 60 to 70, 70 to 80, 80 to 90 and 90 to 100 and 110, 100 to 110 and the last class was 110 to 120.
00:48
So the frequency will be here it is 0 .37 from the given histogram, 0 .22, 0 .11, 0 .05, 0 .06, 0 .07, 0 .04, 0 .03, 0 .01 and 0 .02, 0 .01 and 0 .01.
01:17
The midpoint from these classes is here it is 5, 15, 25, 35, 45, 55, 65, 75, 85, 95, 105, 115, 115 and here it is 1.
01:41
So now we have to calculate the cumulative frequency 0 .37, 0 .59, 0 .70, 0 .75, 0 .81, 0 .88 and here it will be 0 .92, 0 .95, 0 .96, 0 .99 and the total frequency is 1.
02:08
So this is the complete table.
02:12
Now using this table we have to calculate the first quartile that is q1 which is nothing but 25th percentile value.
02:23
So that means cumulative frequency of 0 .25 from the above table we can say that the midpoint value will be equal to 5.
02:34
So that means q1 value will be 5...