What is the probability that at least one accident will occurred in a randomly selected day? ii. Calculate the expected number of accidents occurred daily.
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.
i. What is the probability that at least one accident will occurred in a
randomly selected day?
ii. Calculate the expected number of accidents occurred daily.
![A marketing research firm contacts a random sample of 40 customers from a large
shopping mall and finds that they spend Rs. 1500.00 in average at a single visit.
Construct a 95 percent confidence interval for the average amount spent at a
single visit.
The number of accidents occurring daily at a certain junction has been found to
follow the probability distribution in following table.
Number of accidents (X) 0
Probability [P(X)]
1
3
4
0.35
0.30
0.25
0.08
0.02
i. What is the probability that at least one accident will be occurred in a
randomly selected day?
ii.
Calculate the expected number of accidents occurred daily.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9ee4c9fa-49a5-4c82-8dd5-05413a5e6189%2F5f36ba0b-dc8b-48b0-a627-a8afb80a0644%2Flgkd0jp_processed.png&w=3840&q=75)
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