Q1. The following contingency table summarize the number of students at a college who have a Mastercard or a Visa credit card Have Visa Do Not Have Visa Total Have Mastercard 1000 1500 2500 Do not have Mastercard 3000 4500 7500 Total 4000 6000 10000 Find the probability that a randomly selected student Has a Mastercard Has a VISA Has both credit cards Find the probability that a randomly selected student Has a Mastercard or a VISA Has neither credit card Has exactly one of the two credit cards
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. The following
|
|
Have Visa |
Do Not Have Visa |
Total |
|
Have Mastercard |
1000 |
1500 |
2500 |
|
Do not have Mastercard |
3000 |
4500 |
7500 |
|
Total |
4000 |
6000 |
10000 |
- Find the
probability that a randomly selected student- Has a Mastercard
- Has a VISA
- Has both credit cards
- Find the probability that a randomly selected student
- Has a Mastercard or a VISA
- Has neither credit card
- Has exactly one of the two credit cards
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