Students in a class take a quiz with eight questions. The number x of questions answered correctly can be approximately by the following probability distribution. Complete parts (a) through (e) X 0 1 2 3 4 5 6 7 8 P(X) 0.04 0.01 0.06 0.08 0.13 0.25 0.21 0.14 0.08 (a) Use the probability distribution to find the mean of the probability distribution M= (Round to the nearest tenth as needed (b) Use the probability distribution to find the variance of the probability distribution (Round to the nearest tenth as needed) (c) Use the probability distribution to find the standard deviation of the probability distribution (Round to the nearest tenth as needed) (d) Use the probability distribution to find the expected value of the probability distribution. (Round to the nearest tenth as needed) (e) Interpret the results.
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.
Students in a class take a quiz with eight questions. The number x of questions answered correctly can be approximately by the following
X 0 1 2 3 4 5 6 7 8
P(X) 0.04 0.01 0.06 0.08 0.13 0.25 0.21 0.14 0.08
(a) Use the probability distribution to find the mean of the probability distribution
M= (Round to the nearest tenth as needed
(b) Use the probability distribution to find the variance of the probability distribution
(Round to the nearest tenth as needed)
(c) Use the probability distribution to find the standard deviation of the probability distribution (Round to the nearest tenth as needed)
(d) Use the probability distribution to find the
(e) Interpret the results.
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