Although Your Sister Is Not a Scientist, She Says That

question 17

Multiple Choice

Although your sister is not a scientist, she says that she uses scientific techniques in her everyday life. You do not believe her but she insists it is true. Which of the following examples could she use to best persuade you?

• A) When she cooks, she measures ingredients and puts them together to form something else (e.g., a cake)
• B) When she drives in her car, she hypothesizes about things (e.g., when the red light will turn green)
• C) She put some tomatoes in the sun and some in the shade to see if the sun causes them to ripen faster
• D) She buys a brand of toothpaste based on statistical data (four out of five dentists recommend it)
• E) All of these are examples of using scientific techniques in her everyday life

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Definitions:

Five-Figure Accuracy

Precision that extends to five digits, often used in measurements or financial calculations.

Solve For X

A common phrase used in mathematics to denote the process of finding the unknown value of x in an equation.

Negative Exponents

A mathematical operation indicating the reciprocal of a number raised to a positive exponent, e.g., x^-n = 1/x^n.

Polynomials

Polynomials are mathematical expressions that consist of variables and coefficients, involving operations of addition, subtraction, multiplication, and non-negative integer exponents.