A market research firm is investigating the appeal of three package designs. The table below gives information obtained through a sample of 200 consumers. The three package designs are labeled A, B, and C. The consumers are classified according to age and package design preference. A B C Total Under 25 years 22 34 40 96 25 or older 54 28 22 104 Total 76 62 62 200 If one of these consumers is randomly selected, what is the probability that the person prefers design A? 0.76 0.38 0.33 0.22 0.39
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.
A market research firm is investigating the appeal of three package designs. The table below gives information obtained through a sample of 200 consumers. The three package designs are labeled A, B, and C. The consumers are classified according to age and package design preference.
|
|
A |
B |
C |
Total |
|
Under 25 years |
22 |
34 |
40 |
96 |
|
25 or older |
54 |
28 |
22 |
104 |
|
Total |
76 |
62 |
62 |
200 |
If one of these consumers is randomly selected, what is the
|
0.76 |
||
|
0.38 |
||
|
0.33 |
||
|
0.22 |
||
|
0.39 |
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