Q2. Among a group of five people selected at random from a certain population it is known that the probability that no one will be 35 or over 0.01024. i. What is the probability that exactly one person in the group is under 35? ii. Calculate the mean and variance of the probability distribution of the number of persons over 35 and compare to the formula values for this type of distribution. iii. Given three such groups, what is the probability that two out of three groups have no more than two persons 35 or over
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.
Q2. Among a group of five people selected at random from a certain population it is known
that the
i. What is the probability that exactly one person in the group is under 35?
ii. Calculate the mean and variance of the probability distribution of the number of
persons over 35 and compare to the formula values for this type of distribution.
iii. Given three such groups, what is the probability that two out of three groups have
no more than two persons 35 or over?
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