Q1. A fair coin is flipped 30 times. 1. What is the probability that the coin comes up heads exactly 12 times? 2. What is the probability that the coin comes up heads less than 12 times? 3. What is the probability that the coin comes up heads more than 12 times? 4. What is the probability that the coin comes up heads between 9 and 13 times, inclusive?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Q1. A fair coin is flipped 30 times.
1. What is the probability that the coin comes up heads exactly 12 times?
2. What is the probability that the coin comes up heads less than 12 times?
3. What is the probability that the coin comes up heads more than 12 times?
4. What is the probability that the coin comes up heads between 9 and 13 times,
inclusive?
Q2.Suppose that only 25% of all drivers come to a complete stop at an intersection with
a stop sign when not other cars are visible. What is the probability that of the 20
randomly chosen drivers,
1. Exactly 6 will come to a complete stop?
2. No one will come to a complete stop?
3. At least one will come to a complete stop?
4. At most 6 will come to a complete stop?
5. At most 6 will come to a complete stop?
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
