Can anyone help? Confused and just don't get it. If you could walk me step by step, it would be helpful. If you could help solve this I would appreciate it.
I. Given the following frequency table:
Classes f
10 - 20 5
20 - 30 7
30 - 40 6
40 - 50 2
TOTALS 20
Find: a) the lower boundary of the second class
b) the size of the sample
c) the class marks for each interval
d) the upper boundary for the last class.
e) the class length
II. A set of data consists of 50 observations between 350 and 850.
(a) What rule would you use to find the number of classes ? Use that rule to determine the number of classes.
(b) What formula would you use to determine the class length ? Use that formula to determine the class length.
I. Given the following frequency table:
Classes f
10 - 20 5
20 - 30 7
30 - 40 6
40 - 50 2
TOTALS 20
Find: a) the lower boundary of the second class
b) the size of the sample
c) the class marks for each interval
d) the upper boundary for the last class.
e) the class length
II. A set of data consists of 50 observations between 350 and 850.
(a) What rule would you use to find the number of classes ? Use that rule to determine the number of classes.
(b) What formula would you use to determine the class length ? Use that formula to determine the class length.