TABLE 2-14 Given Below Is the Stem-And-Leaf Display Representing the Amount of Amount

question 260

Short Answer

TABLE 2-14
Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a month by 25 drive-through car wash operations in Phoenix.

-Referring to Table 2-14, if a relative frequency or percentage distribution for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, what percentage of drive-through car wash operations use at least 10 gallons of detergent in a month?

---

Definitions:

Precambrian

Relating to or denoting the earliest eon in the earth's history, which ended about 541 million years ago, before the Cambrian period.

Cenozoic

The most recent of the three major subdivisions of animal and plant life on Earth, covering the time from 66 million years ago to the present.

Mesozoic

The era of geologic time from about 252 to 66 million years ago, known as the "Age of Reptiles," including the Triassic, Jurassic, and Cretaceous periods.

Paleozoic

An era in the geological timescale, occurring between 541 million and 252 million years ago, characterized by the early development of abundant marine life and the first emergence of land plants and animals.