Q.No.3. (a) A bag contains 12 balls, 4 of which are red, 3 black and 5 green. Three balls are drawn from the bag. Find the probability that (i) all three are green (ii) The first is red, second is green and third is black. (b) A sale person has a 40% chance of making a sale to any customer who is called upon. If 18 calls are made, what is the probability that (i) at most 3 sales are made (ii) at least 17 sales are made.
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.
Q.No.3.
(a) A bag contains 12 balls, 4 of which are red, 3 black and 5 green. Three balls are drawn from the bag. Find the
(b) A sale person has a 40% chance of making a sale to any customer who is called upon. If 18 calls are made, what is the probability that (i) at most 3 sales are made (ii) at least 17 sales are made.
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