HEREDITY
BASICS OF PROBABILITY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
4
|
|
|
6
|
|
|
9
|
|
|
8
|
Detailed explanation-1: -The possible outcomes will be HHH, TTT, HTT, THT, TTH, THH, HTH, HHT. So the total number of outcomes is 23 = 8. The above explanation will help us to solve the problems of finding the probability of tossing three coins.
Detailed explanation-2: -Because each flip of the coin offers two possibilities and we are flipping 6 times, the multiplication principle tells us that there will be: 2 · 2 · 2 · 2 · 2 · 2=26 = 64 possible outcomes.
Detailed explanation-3: -The number of outcomes with exactly 3 heads is given by (63) because we essentially want to know how many different ways we can take exactly 3 things from a total of 6 things. The value of this is 20. So the answer is 20/64=5/16.
Detailed explanation-4: -The number of different outcomes when three coins are tossed is 2 × 2 × 2 = 8. All eight possible outcome are HHH, HHT, HTH, HTT, THH, THT, TTH, and TTT.