2. Questions Bank
  3. 9th Class
  4. Mathematics
  5. Probability

9th Class Mathematics Probability Question Bank Probability

  • question_answer
    On the basis of date given alongside what is the possibility that a girl chosen randomly whose height is less than 150 cm?
    Height (in cm) Number of girls
    Less than 140 20
    Less than 145 11
    Less than 150 29
    Less than 155 40
    Less than 160 49
    Less than 165 51

    A)  0.3        

    B)  0.33            

    C)  0.4                              

    D)  0.44

    Correct Answer: A

    Solution :

    (a): Number of girls whose height is less than \[150cm=60=n\left( E \right)\] Total Girls \[=200=n\left( P \right)\] \[12\left( P \right)=\frac{n(E)}{n(S)}=\frac{60}{200}=0.3\]                      


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