An automobile manufacturer has developed a new type of bumpe
       An automobile manufacturer has developed a new type of bumper , which is supposed to absorb impacts with less  damage than previous bumpers. The manufacturer has used this bumper in a sequence of 25 controlled crashes against a wall, each at 10 mph, using one of its compact car models.  
  
  Solution
estimate of p= X/n = no. of cases that result in no visible damage to the automobile / total no. of trials
 = 11 / 25 = 0.44

