A certain radioactive material is known to decay at a rate proportional to the amount present. Initially there is 50 mg of the material present. After 2 hours it is observed that the material has lost 10% of its original mass. a) What is the proportionality constant? b) Find an expression for the mass of the material, N, at any time t. c) After how many hours will the mass of the material be decreased from 50 mg to 38 mg?
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 certain radioactive material is known to decay at a rate proportional to the amount present. Initially there is 50 mg of the material present. After 2 hours it is observed that the material has lost 10% of its original mass.
a) What is the proportionality constant?
b) Find an expression for the mass of the material, N, at any time t.
c) After how many hours will the mass of the material be decreased from 50 mg to 38 mg?
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