1.

if the mean of the following data is 14.7 find the pnq class (0-6)(6 -12)(12- 18)(18- 24)( 24 -30)( 30- 36 )(36- 42) frequency ( 10)( P)( 47 )(Q)( 4)(1) find (p) and (q)

Answer»

Answer:

  1. sum of FIXI is 854+9p+24q
  2. sum of fi is 62+p+q
  3. mean = sum of fixi /sum of fi
  4. by PUTTING the VALUE it GIVES
  5. 14.7= 854+9p+24q/62+p+q
  6. 911.4+14.7p+14.7q=854+9p+24q

by solving this we will GET the answer



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