A coin is tossed three times. find the probability of the following events: 1.getting at least two heads. 2.getting at most one head. 3.getting more heads than tails. answer in easy way with solutions of whole answer of each answer
Answers
Answer:
1. getting at least two heads
Step-by-step explanation:
First doing the questions we would first see the formula to how to calculate probability. This formula is given as follows -
The number of specific outcomes that we want
----------------------------------------------------------------------
The total number of outcomes.
Now lets start the questions.
1. We will put the values in the formula -
The number of specific outcomes that we want 2
---------------------------------------------------------------------- = --------
The total number of outcomes 3
So, 2/3 is the probability of getting two heads.
2. We will put the values in the formula -
The number of specific outcomes that we want 1
---------------------------------------------------------------------- = --------
The total number of outcomes 3
So, 1/3 is the probability of getting one head.
3. Gettin more heads than tails meaning that out of three outcomes, 2 outcomes will be head and 1 outcome would be tail.
We will put the values in the formula -
The number of specific outcomes that we want 2
---------------------------------------------------------------------- = --------
The total number of outcomes 3
So, 2/3 is the probability of getting two heads.