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Chapter 2: Q. 2.126 (page 80)

Population distribution.

Short Answer

Expert verified

The Population Distribution is a type of probability distribution that determines how frequently the items or variables that make up the population are pulled or predicted to be drawn for a certain research study.

Step by step solution

01

Given Information 

A distribution seems to be a function that represents a variable's large dynamic range as well as the rate in which they happen.

02

Explanation 

Population data refers to the values of variables that represent the entire population.

The distribution of given population data is defined as the population distribution. For a particular population, the distribution of the variable under discussion based on the population is represented. This means that each population has a distinct population distribution.

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Most popular questions from this chapter

Distribution of a data set.

For instance, consider the grouped days-to-maturity data given in Table 2.10(b) on page 57.

From that table, we see that the cumulative frequency of investments with a maturity period of less than 50day is 4(3+1)and, therefore, the cumulative relative frequency is0.1(4/40).

Table 2.14shows all cumulative information for the days-to-maturity data.

Cumulative information for days-to-maturity data.

a. Round each observation to the nearest year and then construct a stem-and-leaf diagram of the rounded data.

b. Truncate each observation by dropping the decimal part, and then construct a stem-and-leaf diagram of the truncated data.

c. Compare the stem-and-leaf diagrams that you obtained in parts (a) and (b).

Number of Cars. The number of automobiles per family

In this case, decide which type of grouping (single-value, limit or cutpoint is probably the best.

Detroit Tigers. From the Baseball Almanac website, we found the heights, in inches, of the players on the 2012 World Series runner-up Detroit Tigers baseball team.

Use the graph to answer the following questions. Note that cholesterol levels are always expressed as whole numbers.

a. Construct a stem-and-leaf diagram of these data with five lines per stem.

b. Why is it better to use five lines per stem here instead of one or two lines per stem?

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In this case, decide which type of grouping (single-value, limit, or cutpoint is probably the best.
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