A box of 10 flashbulbs contains 1 defective bulb .A random sample of 2 bulbs is selected and tested. Let X be the random variable associated with the number of defective bulbs in the sample. Find the expected number of defective bulbs in the sample.
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 box of 10 flashbulbs contains 1 defective bulb .A random sample of 2 bulbs is selected and tested. Let X be the random variable associated with the number of defective bulbs in the sample. Find the expected number of defective bulbs in the sample.
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