Question

The number of books in 11 bookshelves in a library is shown below:

23, 41, 27, 25, 31, 21, 21, 45, 56, 37, 58

Use a histogram to organize the data and answer the following question:

Which statement best compares the height of the bars of the histogram?

It is equal for intervals 50-59 and 20-29.

It is equal for intervals 40-49 and 20-29.

It is greater for interval 20-29 than for interval 30-39.

It is greater for interval 30-39 than for interval 40-49.

Answer 1

@Isaiah.Feynman

Answer 2

@johnweldon1993

Answer 3

This is the histogram that I believe matches the data.

Answer 4

have u created it in geogebra

Answer 5

?

Answer 6

try changing the bin width to 10

Answer 7

Yes, but I don't trust geogebra 100% Because I don't think it is always accurate which is why I usually do graphs and stuff by hand

Answer 8

look at sorted data
http://www.wolframalpha.com/input/?i=sort+%7B23%2C+41%2C+27%2C+25%2C+31%2C+21%2C+21%2C+45%2C+56%2C+37%2C+58%7D

Answer 9

how many data values are between :

20-29 : ?
30-39 : ?
40-49 : ?
50-59 : ?

Answer 10

21, 21, 23, 25, 27, 31, 37, 41, 45, 56, 58

Answer 11

20 - 29 : 5
30 - 39 : 2
40 - 49 : 2
50 - 59 : 2

Answer 12

look at ur options

Answer 13

and see which one matches

Answer 14

Leaning towards C

Answer 15

thats right ! you can be sure that it is C for this problem.
previous problem has some ambiguity about definitions, but this problem is pretty clear

Answer 16

Okay, Thank you! :)