Use the Grouped Data Formulas to Find the Indicated Mean

question 74

Multiple Choice

Use the grouped data formulas to find the indicated mean or standard deviation.
-For the following data set, approximate the sample standard deviation. $$\begin{array} { c | c } \text { Height (in inches) } & \text { Frequency } \\\hline 50 - 52 & 5 \\53 - 55 & 8 \\56 - 58 & 12 \\59 - 61 & 13 \\62 - 64 & 11\end{array}$$

• A)3.85
• B)1.86
• C)2.57
• D)0.98

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Definitions:

Psychological Dependence

A psychological need to use a drug, such as to relieve negative emotions.

Hypnotically Suggestible

Referring to the extent to which an individual is likely to respond to suggestions made during hypnosis.

Imagination

The faculty or action of forming new ideas, or images or concepts of external objects not presently seen or experienced.

Dissociation Theory

A psychological theory suggesting that individuals can detach from their immediate surroundings or from their physical and emotional experiences, often as a defense mechanism.