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Consider the following grouped frequency distribution:

If the mean of the above data is 25.2, then what is the value of p?
  • a)
    9
  • b)
    10
  • c)
    11
  • d)
    12
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Consider the following grouped frequency distribution:If the mean of t...
Mean = (sum of fixi )/ (sum of f) = (8*5 + 12*15 + 10*25 + P*35 + 9*45) / (8+12+10+P+9) = 25.2
(875 + 35P)/(39+P) = 25.2
P = 11
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Most Upvoted Answer
Consider the following grouped frequency distribution:If the mean of t...
Mean = (sum of fixi )/ (sum of f) = (8*5 + 12*15 + 10*25 + P*35 + 9*45) / (8+12+10+P+9) = 25.2
(875 + 35P)/(39+P) = 25.2
P = 11
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Consider the following grouped frequency distribution:If the mean of the above data is 25.2, then what is the value of p?a)9b)10c)11d)12Correct answer is option 'C'. Can you explain this answer?
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