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November 08, 2025, 08:13:14 am
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Author Topic: The mean or average problem  (Read 598 times)  Share 

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samsiexD

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The mean or average problem
« on: February 10, 2013, 08:20:25 pm »
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How do i solve question 2?

I substituted the values in but i don't think i'm doing it right :P
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abcdqdxD

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Re: The mean or average problem
« Reply #1 on: February 10, 2013, 08:26:40 pm »
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missing x value is 1.005
« Last Edit: February 10, 2013, 08:28:58 pm by abcdqdxD »
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samsiexD

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Re: The mean or average problem
« Reply #2 on: February 10, 2013, 08:28:08 pm »
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How did you get that?
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Daenerys Targaryen

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Re: The mean or average problem
« Reply #3 on: February 10, 2013, 08:30:08 pm »
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If the mean of 15 numbers is 1.867 then:
Let a = sum of all 15 numbers



As 14 of the numbers disregarding x  is 27
Then
« Last Edit: February 10, 2013, 08:34:39 pm by HatersGonnaHate »
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abcdqdxD

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Re: The mean or average problem
« Reply #4 on: February 10, 2013, 08:31:55 pm »
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1.867=(27+b)/15     

=> 28.005=27+b
=> 1.005=b

you can replace 'b' with any pronumeral

EDIT: BEATEN
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samsiexD

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Re: The mean or average problem
« Reply #5 on: February 10, 2013, 08:35:30 pm »
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Thank you both so much :]
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teletubbies_95

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Re: The mean or average problem
« Reply #6 on: February 10, 2013, 08:36:10 pm »
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If you don't mind me asking, what textbook are you using?
Looks like it has great questions!

Thanks!
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samsiexD

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Re: The mean or average problem
« Reply #7 on: February 10, 2013, 09:11:55 pm »
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My teacher gave it to me as a handout, sorry!
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