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

@orion :)

Answer 2

draw a graph with the info given

Answer 3

then use the graph to answer

Answer 4

Would it be C?

Answer 5

we can re-arrange the data by means of groupings in terms of ranges... and count the number of books that falls within the range...
range 20-29 = {21,21,23,25,27} = 5
range 30-39 = {31,37} = 2
range 40-49 = {41,45} = 2
range 50-59 = {56,58} = 2
what can we say now about the interval based on your choices?

Answer 6

That range 20-29 has a greater range than the other ones so answer choice C would work, im pretty sure

Answer 7

yes it's correct, it is the only statement that is true....\(\ddot\smile\)

Answer 8

Thanks again :D