Q1. A family has 2 children, then the probability of the event that atleast one of them is boy is:
a. 1/4 b. 1/2 c. 1/3 d. 3/4
Q2. A student is attempting to log on internet with 0.5 chance of successful attempt in each trail. The average no of attempts required to log on successfully is:
a. 1 b. 2 c. 3 d. 4
You should also know that MHF is an international forum. Urgency of the kind you're talking about simply isn't part of MHF. Most "urgent help" is for homework that counts towards a final grade. It is forum policy not knowingly to help with such problems.