anonymous
  • anonymous
Help please. Find the mean and the range of the data set. Show your work. 55 62 61 54 68 72 59 61 70 55+62+61+54+68+72+59+61+70 = 562 55+62 = 117+61= 178+54=232+68 =300+72= 372+59=431+61=492+70=562 Our mean is 9/562 and our most common number is =61 I got 0.016014234
Mathematics
jamiebookeater
  • jamiebookeater
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LynFran
  • LynFran
to find the mean u add up all the numbers and then divide by the amount of numbers ...to find the range u take the largest number and subtract the smallest number...
anonymous
  • anonymous
The largest number in the data set?
LynFran
  • LynFran
yes

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anonymous
  • anonymous
70 - what?
LynFran
  • LynFran
and ur mean shd be 562/9..... the largest #is 72
anonymous
  • anonymous
Alright do i divide first then subtract?
LynFran
  • LynFran
no lets do the mean first 55+62+61+54+68+72+59+61+70=562 now how many numbers are there
LynFran
  • LynFran
how many numbers did i add to get 562?
anonymous
  • anonymous
9
LynFran
  • LynFran
good so we have to divide the 562 by 9 to find the mean
anonymous
  • anonymous
562/9 = 62
anonymous
  • anonymous
I did it backwards DX
anonymous
  • anonymous
That's how i got a zero digit number
LynFran
  • LynFran
62.4
anonymous
  • anonymous
Yeah didn't think i need to include the 4 but alright.
LynFran
  • LynFran
to find the range we take the largest # and subtract the smallest #....whats the largest number? whats the smallest #?
anonymous
  • anonymous
72, 54
LynFran
  • LynFran
good 72-54=?
anonymous
  • anonymous
72-54 = 18
LynFran
  • LynFran
good thats ur range
anonymous
  • anonymous
Isn't all?
LynFran
  • LynFran
if you were finding for the mode then i would have been 61...since the mode is the number that occurs the most
anonymous
  • anonymous
Alright Thanks Lyn :)
LynFran
  • LynFran
welcome

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