Math Problem Statement
A weighted coin has a
0.596
probability of landing on heads. If you toss the coin
12
times, what is the probability of getting heads more than
7
times? (Round your answer to
3
decimal places if necessary.)
Solution
This is a binomial probability problem, where we are tossing a weighted coin 12 times, and the probability of getting heads is 0.596. We are asked to find the probability of getting heads more than 7 times, i.e., for the number of heads .
The binomial probability formula is:
Where:
- is the number of trials (12 tosses),
- is the probability of success (0.596),
- is the random variable representing the number of heads,
- is the number of heads (we want more than 7 heads).
To find the probability of getting more than 7 heads, we need to calculate:
I'll calculate this for you using binomial probability values for each of these outcomes.The probability of getting more than 7 heads in 12 tosses of a weighted coin with a probability of 0.596 of landing on heads is approximately (rounded to 3 decimal places).
Would you like more details on the steps or any clarifications?
Here are some related questions:
- How would the probability change if the number of tosses increases?
- What is the probability of getting exactly 7 heads?
- How does the probability of tails affect the outcome?
- How would the distribution look graphically?
- What happens if the coin is fair, i.e., with ?
Tip: The binomial distribution becomes more symmetric and approaches a normal distribution as the number of trials increases.
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Math Problem Analysis
Mathematical Concepts
Probability
Binomial Distribution
Random Variables
Formulas
Binomial probability formula: P(X = k) = (n choose k) * p^k * (1-p)^(n-k)
P(X > 7) = P(X = 8) + P(X = 9) + P(X = 10) + P(X = 11) + P(X = 12)
Theorems
Binomial Theorem
Suitable Grade Level
Grades 10-12
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