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Chapter 1: Q 75. (page 49)

Baseball players (Introduction) Here is a small part of a data set that describes Major League Baseball players as of opening day of the 2009 season:

(a) What individuals does this data set describe?

(b) In addition to the player鈥檚 name, how many variables does the data set contain? Which of these variables are categorical and which are quantitative?

(c) What do you think are the units of measurement for each of the quantitative variables?

Short Answer

Expert verified

Part (a) Players are the individuals that are described in the data set.

Part (b)

AgeYears
HeightInches or Centimeters
WeightKilograms or Pounds
SalaryDollars

Step by step solution

01

Part (a) Step 1: Given information

Given data :

PlayersTeamPositionAgeHeightWeightSalary
Rodriguez AlexYankeesInfielder336-323033,000,000
Ramirez MannyDodgersOutfielders
366-020023,854,494
Santana JohanMetsPitcher306-021018,876,139
Zambrano CarlosCubsPitcher276-525518,750,000
Suzuki IchiroMarinersOutfielders
355-1117018,000,000
02

Part (a) Step 2: Concept

Quantitative variables are measurements that are made up of numerical values.

03

Part (a) Step 3: Explanation

Individuals described in the data collection that describes major league baseball players as of the 2009 season's opening day are referred to as players.

04

Part (b) Step 1: Explanation

The units of measurement of each quantitative variable are:

AgeYears
HeightInches or Centimeters
WeightKilograms or pounds
SalaryDollars

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