A Standardized Test Has a Mean Score of 500 Points

question 15

Multiple Choice

A standardized test has a mean score of 500 points with a standard deviation of 100 points. Five studentsʹ scores are shown below.
Adam: 575 Beth: 690 Carlos: 750 Doug: 280 Ella: 440
Which of the students have scores within two standard deviations of the mean?

• A)Adam, Beth, Carlos, Ella
• B)Carlos, Doug
• C)Adam, Beth, Ella
• D)Adam, Beth

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Definitions:

Degrees Celsius

A scale and unit of measurement for temperature where water freezes at 0 degrees and boils at 100 degrees under standard conditions.

Fahrenheit

One of two common scales used for measuring temperature; measured in degrees Fahrenheit, or °F.

Apical Pulse

The pulse felt at the tip of the heart, often assessed by listening over the apex of the heart with a stethoscope.

Cardiography

The recording of electrical activity of the heart over a period of time, used in the diagnosis of heart conditions.