About 13% of the population if left-handed. If three people are randomly selected, what is: The probability all three are left-handed? The probability that at least one of the three is right-handed?
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.
About 13% of the population if left-handed. If three people are randomly selected, what is:
- The
probability all three are left-handed?
- The probability that at least one of the three is right-handed?
Give that a standard deck of cards contains 52 cards as shown below [and discussed in the online lectures]:
If you select a single card at random from a deck of cards, what is the probability the card is:
- A Jack or Queen?
- An even number?
- A Jack or Heart?
- An even number of Spade?
A survey was conducted of 200 students at SUNY WCC, asking them “Do you smoke?” Results are shown in the table below.
|
|
Yes |
No |
|
Male |
40 |
80 |
|
Female |
20 |
60 |
- If a student is selected at random, what is the probability they smoke?
- If a female is selected at random, what is the probability she does not smoke?
- If a male is selected at random, what is the probability he smokes?
Suppose you have a bag of marbles that contains 8 blue marbles and 2 yellow marbles. If you select two marbles from the bag, one after the other without replacing the first, what is:
- The probability you get two blue marbles?
- The probability you get two yellow marbles?
- The probability you get one yellow and one blue marble?
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