The Results of a Survey of 800 Married Couples and the Number

question 28

Short Answer

The results of a survey of 800 married couples and the number of children they had is shown below.
If a couple is selected at random, what is the probability that the couple will have
a.Less than 4 children?
b.More than 2 children?
c.Either 2 or 3 children?

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Definitions:

Triglyceride

A triglyceride is a type of fat molecule made up of three fatty acids linked to a glycerol backbone, commonly found in the human body and in foods.

Optically Inactive

Describes compounds that do not rotate the plane of polarized light, usually because they are achiral or have a symmetrical arrangement of atoms.

Base-promoted Hydrolysis

A chemical reaction where a base speeds up the hydrolysis process, commonly involving cleavage of bonds by the addition of water.

Fats

Molecules composed of triglycerides that are solid at room temperature, commonly found in animals and some plants, and serve as a major energy source.