1.
1 answer:
You might be interested in
<h2>Answer:</h2>
1. A coin is tossed four times. What is the probability of getting four heads?
Each toss has a 1/2 chance of getting a head.
So the chance of getting all four heads can be calculated as :
2. A coin is tossed four times. What is the probability of getting two heads?
Each toss can have 2 results, so 4 flips will have or 16 results.
Getting two heads means getting two tails also. So, we can get the number of times two heads come = = 6
We can write the groups like - {HHTT,HTHT,HTTH,THHT,THTH,TTHH}
So, the required probability is : 6/16 or 3/8.
3. Not getting two heads means getting 3 tails and 1 head or all tails.
Probability of having all tails =
Probability of one head(1st trial) and three tails = 1/16
Probability of one head (2nd trial) and three tails (the 1st, 3rd and 4th trials) = 1/16
Probability of one head (3rd trial) and three tails (the 1st, 2nd and 4th trials) = 1/16
Probability of one head (4th trial) and three tails (the 1st, 2nd and 3rd trials) = 1/16
So, the total probability showing only one or none head and at least three tails =
Answer:
Graces expect her Favorite team can win 99 games.
Step-by-step explanation:
Total games needs to be played = 162
So far graces favorite team won 11 games and lost 7 games
Games Won = 11
Games lost = 7
Total games played till now = Games Won + Games Lost = 11 +7 =18
Now we will find the winning percentage of the team.
Winning percentage can be calculated by dividing Games won with total games played till now and the multiplied with 100
Winning Percentage =
We need to find Total games team can win at same rate.
Games team can win can be calculated by multiplying Total games needs to be played this season with Winning Percentage.
Games team can win =
Hence Graces can expect her favorite can win approximately 99 games.