madhu.mukherjee.946
  • madhu.mukherjee.946
find the mode of the following data: year under: 10 20 30 40 50 60 no.of persons: 15 32 51 78 97 109 i want proper workings
Mathematics
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
The "mode" is the most commonly-occurring number in a data set (if there is one). For example, for the set: 2, 3, 3, 5, 5, 5, 7, 8 the mode would be 5. I'm not sure what your numbers are: do you have 15 people under (age) 10? To answer this, we need to know what the numbers in the data set are...
madhu.mukherjee.946
  • madhu.mukherjee.946
i've posted all the information and this is one s grouped frequency
anonymous
  • anonymous
I just found this web page; it may be helpful to you: https://www.mathsisfun.com/data/frequency-grouped-mean-median-mode.html

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madhu.mukherjee.946
  • madhu.mukherjee.946
thanks@onemathcat
madhu.mukherjee.946
  • madhu.mukherjee.946
but my question is for finding mode by the formula we consider 109 to be the maximum frequency?
madhu.mukherjee.946
  • madhu.mukherjee.946
@triciaal
triciaal
  • triciaal
not a stats person |dw:1442645270107:dw|
madhu.mukherjee.946
  • madhu.mukherjee.946
@triciaal icalculated the mode .is it 50.99
triciaal
  • triciaal
the mode is just the most frequent for each group what amount is in that group
triciaal
  • triciaal
0-10 15 10-20 17 20-30 19 30-40 27 40 -50 19 50-60 12 mode 27 group 30 - 40
madhu.mukherjee.946
  • madhu.mukherjee.946
the frequencies given are they cummulative frequency
madhu.mukherjee.946
  • madhu.mukherjee.946
@triciaal
triciaal
  • triciaal
you said that above or did I misunderstand?
madhu.mukherjee.946
  • madhu.mukherjee.946
nope i'm asking you i did not understand ;coz in the question it does not says anything
triciaal
  • triciaal
@ganeshie8 stats?
triciaal
  • triciaal
look at your first post below the question
triciaal
  • triciaal
I am not the best stats person @nincompoop
madhu.mukherjee.946
  • madhu.mukherjee.946
@kropot72
kropot72
  • kropot72
The label "year under" seems to indicate a cumulative frequency table. Converting to a frequency table we get: Age group 0 ~ 9 10 ~ 19 20 ~ 29 30 ~ 39 40 ~ 49 50 ~ 59 No. persons 15 17 19 27 19 12 The largest group is in the 30 ~ 39 age range. The average age in this group can be estimated to be given by (30 + 39)/2 = 34.5 years old. Therefore the estimated mode is 34.5 years of age.
madhu.mukherjee.946
  • madhu.mukherjee.946
thanks @kropot72
kropot72
  • kropot72
You're welcome :)

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