Chapter 1, Problem 4E

(a)

To determine

To find: the individuals described by the data.

Answer to Problem 4E

The individuals as 5 new roller coasters that were opened in 2009

Explanation of Solution

Given:

Roller coaster	type	height	design	speed	duration
Wild mouse	Steel	49.3	Sit down	28	70
Terminator	wood	95	Sit down	50.1	180
Manta	Steel	140	flying	56	155
Prowler	Wood	102.3	Sit down	51.2	150
Diamondback	steel	230	Sit down	80	180

From the given information, the individuals as 5 new roller coasters that were opened in 2009.\

(b)

To determine

To identify: the quantitative variables, and the units measured.

Answer to Problem 4E

Three variables are quantitative i.e. Height, speed and duration and their measurement units are feet, meters per hour and seconds respectively.

Explanation of Solution

Five variables are measured here that describes the new roller coasters that were opened in

2009. The variables, their group and their measurement units are below.

s.no	Name of the variable	group	Measurement unit
1	Type	categorical	Steel or wood
2	Height	quantitative	feet
3	Design	categorical	Sit down or flying
4	Speed	quantitative	Meters per hour
5	Duration	categorical	seconds

Thus from the above table we found that out of five, three variables are quantitative i.e. Height, speed and duration and their measurement units are feet, meters per hour and seconds respectively.

(c)

To determine

To describe: the highlighted individual in the row

Answer to Problem 4E

The individual in highlighted row is a prowler roller coaster made up of wood, with height of 102.3 feet,

Explanation of Solution

The individual in highlighted row a prowler roller coaster made up of wood, with height of 102.3 feet, having sit-down design, and can move at the speed of 51.2 meters per second and takes for 180 seconds.