2. Sample Papers
  3. JEE Main & Advanced

JEE Main & Advanced Sample Paper JEE Main Sample Paper-25

  • question_answer
    Consider the frequency distribution of the given number
    Value 1 2 3 4
    Frequency 5 4 0 \[\alpha \]
    If mean of the distribution is equal to 3, then the value of a is

    A)  7                                

    B)  9

    C)  12                               

    D)  14

    Correct Answer: D

    Solution :

    \[\frac{1.5+2.4+3.0+4\alpha }{5+4+0+\alpha }\,=3\Rightarrow \,\alpha =14\]


You need to login to perform this action.
You will be redirected in 3 sec spinner