24.11.2014 Views

Investigation Notebook and Reflection Journal (3057.0K)

Investigation Notebook and Reflection Journal (3057.0K)

Investigation Notebook and Reflection Journal (3057.0K)

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>Investigation</strong> 2<br />

I found this on page .<br />

4. Vocabulary Write Yes or No to tell whether each statement<br />

about mean is correct.<br />

The mean is the value that occurs most often in a set<br />

of data.<br />

Another word commonly used for mean is average.<br />

To find the mean, you add all the values in a set <strong>and</strong><br />

divide by the total number of values.<br />

The mean is the middle value in a set of values.<br />

Develop & Underst<strong>and</strong>: B<br />

5. Ten students sold gift wrap for a club fundraiser. They sold the<br />

following numbers of gift wrap packages.<br />

24 13 17 15 8 21 9 12 15 19<br />

Find the mean for the numbers of gift wrap packages sold.<br />

6. Describe a situation where knowing the mean for a set of<br />

information would be useful.<br />

<strong>Investigation</strong> 3<br />

I found this on page .<br />

Develop & Underst<strong>and</strong>: B<br />

7. Tell whether mean or median would be the best statistic to use<br />

for the data below. Explain why you made your choice.<br />

a. the average score on a test<br />

b. the average salary of a large company<br />

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.<br />

50 <strong>Investigation</strong> <strong>Notebook</strong> <strong>and</strong> <strong>Reflection</strong> <strong>Journal</strong>

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!