Suppose that in an assortment of 24 calculators there are 4 with defective switches. Draw with and without replacement. (Enter the probabilities as fractions.) (a) If one machine is selected at random, what is the probability it has a defective switch? with replacement without replacement (b) If two machines are selected at random, what is the probability that both have defective switches? with replacement without replacement (c) If three machines are selected at random, what is the probability that all three have defective switches? with replacement without replacement
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.
Suppose that in an assortment of 24 calculators there are 4 with defective switches. Draw with and without replacement. (Enter the probabilities as fractions.)
| with replacement | |
| without replacement |
(b) If two machines are selected at random, what is the probability that both have defective switches?
| with replacement | |
| without replacement |
(c) If three machines are selected at random, what is the probability that all three have defective switches?
| with replacement | |
| without replacement |
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