Use the table to calculate average number of individuals (based on a survey of 7 millennials) who have one or more tattoos. Round your answer to the nearest whole number. _______ What is the probability that none of the 7 individuals surveyed has one or more tattoos? ________ What is the probability that 5 or more surveyed individuals would have one or more tattoos?
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.
The table below shows the probability outcomes when randomly choosing 7 millennial aged individuals and asking them to respond yes or no to this question: Do you have one or more tattoos?
|
Number of millennials that have at least one tattoo. |
|
|
|
|
0 |
0.044 |
|
|
|
1 |
0.173 |
|
|
|
2 |
0.292 |
|
|
|
3 |
0.274 |
|
|
|
4 |
0.154 |
|
|
|
5 |
0.052 |
|
|
|
6 |
0.010 |
|
|
|
7 |
0.001 |
|
|
Use the table to calculate average number of individuals (based on a survey of 7 millennials) who have one or more tattoos. Round your answer to the nearest whole number. _______
What is the probability that none of the 7 individuals surveyed has one or more tattoos? ________
What is the probability that 5 or more surveyed individuals would have one or more tattoos? _______
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