Statistics!!! Help, Help, Help!!

[chloe77x]

I've developed a complete mental block! How do I answer this problem??

A histogram with values from 1.5-17.5 on the bottom and relative frequencies from .05-.30 up the side shows the scores obtained for 100 students who answered a questionnaire. What is the PROPORTION of scores that lie between 3.5 and 5.5? <-- these two values are shown as the first and last values on the second histogram box. Hopefully this makes sense!! THank you SOO much!

 

[mathstresser]

My guess would be to count the number of scores between the interval (3.5,5.5)

Then divide by 100 to get the proportion.

 

[Unco]

I've developed a complete mental block! How do I answer this problem??

A histogram with values from 1.5-17.5 on the bottom and relative frequencies from .05-.30 up the side shows the scores obtained for 100 students who answered a questionnaire. What is the PROPORTION of scores that lie between 3.5 and 5.5? <-- these two values are shown as the first and last values on the second histogram box. Hopefully this makes sense!!

The proportion of scores that lie between 3.5 and 5.5 is the relative frequency of scores that lie between 3.5 and 5.5.