b. A box contains 7 balls, 2 of which are red, 3 are blue and 2 green. Suppose that 2 balls are randomly selected from the box. (i) Dene a sample space for selecting the balls from the box. (ii) Find the probability that exactly one red ball is chosen. (iii) Find the probability that 2 balls of the same colour are chosen. (iv) What is the probability that either a blue or a green ball is selected?
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.
b. A box contains 7 balls, 2 of which are red, 3 are blue and 2 green. Suppose that
2 balls are randomly selected from the box.
(i) Dene a
(ii) Find the probability that exactly one red ball is chosen.
(iii) Find the probability that 2 balls of the same colour are chosen.
(iv) What is the probability that either a blue or a green ball is selected?
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