Q The marks in Science of 13 students are 31,37,29,41,36,35,38,36,35,38,32,29,43. Find
  1. range
  2. median
  3. mean
  4. mode

Dear student
We know,Mean=Sum of observationsTotal number of observationsHere Total number of observations=13and  Sum of observations=31+37+29+41+36+35+38+36+35+38+32+29+43=460So, Mean=46013=35.38Range:We know that the Range is the difference of the highest and lowest observation.Range=Highest observation-lowest observation=43-29=14Mode:The mode of  a set of observation is the observation that occurs most often.Arranging the numbers with same values together, we get29,29,31,32,35,35,36,36,37,38,38,41,43Mode is : 29,35,36,38Median:Arranging the numbers in ascending order29,29,31,32,35,35,36,36,37,38,38,41,43Median is the  middle observation.So, 36 is the median
Regards

  • -1
I AM SOORY DONT KNOW 
 
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The range of the data is 9. The median is 35. The mode is also 35. The mean is 35.3076923077. You can write the mean as 35(approx.) Hope that this answer is useful
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