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May 22, 2013

# Homework Help: statistics

Posted by mary on Monday, October 11, 2010 at 11:21pm.

starting with the values 70 and 100, add 3 data values to the sample so that the mean is 76. the median is 82 and the mode is 82. show work

• statistics - Jen, Monday, October 11, 2010 at 11:30pm

70+82+82+100+x/5=76
(There has to be at least two 82's since it is the mode.) Solve for x, and that's the third unknown.

• statistics - mary, Monday, October 11, 2010 at 11:40pm

starting with the values 70 and 100, add 3 data values to the sample so that the mean is 76. the median is 82 and the mode is 82. show work. (please help me find the 3 data values and show how was figured out. i am totally confused.

• statistics - Jen, Tuesday, October 12, 2010 at 2:14pm

I did explain it, Mary. We already know that you have a 70 and 100. There has to be at least 82's since it's the mode (occurs the most). We can then solve for the missing number. (70+82+82+100+x)/5=76..x will be the last missing number.

• statistics - Anonymous, Saturday, November 3, 2012 at 11:52pm

70+83+83+x+100/5=76

336+x=5(76)

380-336=44

x=44 which is the third number therefore the number group will be

70+83+83+44+100

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