The daily demand for copies of a movie magazine at a variety store has the probability distribution as follows. Number of Copies X Probability ?(?) 0 0.06 1 0.14 2 0.16 3 0.14 4 0.12 5 0.10 6 0.08 7 0.07 8 0.06 9 0.04 10 0.03 1. Find ?(? ≤ 2) 2. Find ?(? ≥ 7) 3. Find ?(3 ≤ ? ≤ 6)
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 daily demand for copies of a movie magazine at a variety store has the
follows.
Number of Copies X Probability ?(?)
0 0.06
1 0.14
2 0.16
3 0.14
4 0.12
5 0.10
6 0.08
7 0.07
8 0.06
9 0.04
10 0.03
1. Find ?(? ≤ 2)
2. Find ?(? ≥ 7)
3. Find ?(3 ≤ ? ≤ 6)
4. What is the probability that three or more copies will be demanded in a particular day?
5. What is the probability that the demand will be at least two but not more than six?
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