<PRE><B>Question 80644</B>
The table below shows the frequency distribution for 12 students on a test with a maximum score of 20. Use these sample data to answer questions 5 through 7:

Score	Frequency	Midpoint	Midpoint  x Frequency	Midpoint squared x Frequency
1 - 5	5	 	 	 
6  - 10	3	 		 
11 - 15	2		 	
16 - 20	2	 	 	 
			 	
 	 	 	 	 
 	 	 	 	 
Totals		 	 	

______5.   The mean score,  , of the data in the frequency distribution above is (to 		       the nearest 1/10)
	a.  8.0		b.  8.4		c.  8.7		d. notlisted
ANSWER: 8.4

______6.   The standard deviation of the scores in the frequency distribution above	       	       is (to the nearest 1/10)

	a.  5.0		b.  5.3		c.  5.8		d.  answer not listed
ANSWER: 5.8

_____7.   The median score lies in which score interval?
ANSWER: The median is 8 which lies in the interval 6 - 10.

		a.  1 – 5	b.  6 – 10	c.  11 – 15	d.  16 - 20
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Cheers,
Stan H.
</PRE>