An employee of the records office at a certain universitycurrently has ten forms on his desk awaiting processing.Six of these are withdrawal petitions and the other fourare course substitution requests.a. If he randomly selects six of these forms to give to asubordinate, what is the probability that only one ofthe two types of forms remains on his desk?b. Suppose he has time to process only four of theseforms before leaving for the day. If these four arerandomly selected one by one, what is the probabilitythat each succeeding form is of a different type fromits predecessor?
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.
An employee of the records office at a certain university
currently has ten forms on his desk awaiting processing.
Six of these are withdrawal petitions and the other four
are course substitution requests.
a. If he randomly selects six of these forms to give to a
subordinate, what is the probability that only one of
the two types of forms remains on his desk?
b. Suppose he has time to process only four of these
forms before leaving for the day. If these four are
randomly selected one by one, what is the probability
that each succeeding form is of a different type from
its predecessor?
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