Various doses of a poisonous substance were givento groups of 25 mice and the following results wereobserved: Dose (mg) Number of deathsx y4 16 38 610 812 1414 1616 20 (a) Find the equation of the least squares line fit tothese data.(b) Estimate the number of deaths in a group of 25 micethat receive a 7-milligram dose of this poison.
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.
Various doses of a poisonous substance were given
to groups of 25 mice and the following results were
observed:
Dose (mg) Number of deaths
x y
4 1
6 3
8 6
10 8
12 14
14 16
16 20
(a) Find the equation of the least squares line fit to
these data.
(b) Estimate the number of deaths in a group of 25 mice
that receive a 7-milligram dose of this poison.
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