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Mathematics 9 Online
OpenStudy (sleepyjess):

Histogram help please? Question below

OpenStudy (sleepyjess):

The number of votes won by 11 students during the school election is shown below: 12, 40, 27, 15, 31, 21, 34, 40, 35, 37, 45 Use a histogram to organize the data and answer the following question: Which statement best compares the height of the bars on the histogram?

OpenStudy (sleepyjess):

A. It is the same for intervals 10-19 and 20-29 B. It is the same for intervals 10-19 and 30-39 C. It is greater for interval 10-19 than for interval 20-29. D. It is greater for interval 10-19 than for interval 30-39.

OpenStudy (rockinhood):

Did you draw the histogram out?

OpenStudy (rockinhood):

aka bar graph

OpenStudy (sleepyjess):

Yes, I made one to see the numbers on the chart, but I'm not sure on what it means by intervals

ganeshie8 (ganeshie8):

Your histogram is wrong

ganeshie8 (ganeshie8):

You must choose "number of votes on the x axis" and the frequency always goes on the y axis

ganeshie8 (ganeshie8):

Look at the observations ``` 12, 40, 27, 15, 31, 21, 34, 40, 35, 37, 45 ``` How many of these are between 10 and 19 (inclusive) ?

OpenStudy (sleepyjess):

2 are between 10 and 19

OpenStudy (sleepyjess):

12 and 15

ganeshie8 (ganeshie8):

How many are between 20 and 29 ?

OpenStudy (sleepyjess):

2 again, 21 and 27

ganeshie8 (ganeshie8):

how many between 30 and 39 ?

OpenStudy (sleepyjess):

4

OpenStudy (sleepyjess):

So it is the same for 10-19 and 20-29?

ganeshie8 (ganeshie8):

Yep!

OpenStudy (sleepyjess):

Wow, didn't realize it was that simple, thanks :)

ganeshie8 (ganeshie8):

Np :) remember, y axis represents the frequency in any histogram

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