Question

fan+medallion!

Which intervals can you use to make a frequency table for the data set?
95 103 110 86 72 77 97 118 83 101 105 79 78 95 93

A.
70–89, 90–104, 105–115, 116–125

B.
70–84, 85–99, 100–114, 115–129

C.
70–89, 90–99, 100–109, 110–119

D.
70–85, 85–100, 100–115, 115–130

Answer 1

hmmm i say C

Answer 2

y? can u explain?

Answer 3

its kind of hard to explain but i say C because if you look closely at C you can see like they are counting by nines like this 100-109 and if you look at a,b,d you can't see that

Answer 4

i see... il fan+medal u but i have a few more (im fanning and medalling you if you help and if you don't help so ;P)

Answer 5

they all have to be the same like this 100-109, 110-119, not like this 45- 50, 50- 60

Answer 6

thanks for the fan and the medal hope this help ~Frozengirl123009

Answer 7

Which intervals can you use to make a frequency table for the data set?
95 103 110 86 72 77 97 118 83 101 105 79 78 95 93

A.
70–89, 90–104, 105–115, 116–125

B.
70–84, 85–99, 100–114, 115–129

C.
70–89, 90–99, 100–109, 110–119

D.
70–85, 85–100, 100–115, 115–130

Answer 8

;p sorry just typed it from my hw sheet

Answer 9

A better choice is D. The frequency table should generally have equal widths for each class. The idea is to use the data points -- the samples -- to estimate some underlying distribution.

If you use unequal widths--and sometimes you do want to do this--then the underlying distribution isn't as apparent, e.g., a very large width will have a higher frequency than a very small width, all things else being equal.