TABLE 2-18 The Stem-And-Leaf Display Below Shows the Result of a Survey

question 186

True/False

TABLE 2-18
The stem-and-leaf display below shows the result of a survey on 50 students on their satisfaction with their school with the higher scores represent higher level of satisfaction.

-Referring to Table 2-18, if a student is randomly selected, his/her most likely level of satisfaction will be in the 60s among the 40s, 50s, 60s, 70s, 80s and 90s.

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Definitions:

NaCl

The chemical formula for sodium chloride, commonly known as table salt.

Avogadro's Number

The number of units in one mole of any substance (defined as its molecular weight in grams), approximately 6.022 x 10^23 units.

Mass

A measure of the amount of matter that an object contains, often expressed in kilograms or grams.

Mole

A unit in chemistry used to express amounts of a chemical substance, defined as containing exactly 6.02214076×10²³ particles, such as atoms or molecules.