The Contingency Table Below Provides a Joint Frequency Distribution for a Random

question 68

Multiple Choice

The contingency table below provides a joint frequency distribution for a random sample of patients at a hospital classified by blood type and sex. Blood Type $$\begin{array} { | l | c | c | c | c | c | } \hline \text { Sex } & \text { O } & \text { A } & \text { B } & \text { AB } & \text { Total } \\\hline \text { F } & 105 & 85 & 24 & 11 & 225 \\\hline M & 72 & 74 & 15 & 4 & 165 \\\hline \text { Total } & 177 & 159 & 39 & 15 & 390 \\\hline\end{array}$$ If a person is selected at random from the sample,find the probability that the person has blood type A or is female.

• A)0.985
• B)0.767
• C)0.378
• D)0.535
• E)0.218

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Definitions:

Coping with Stress

Strategies and mechanisms that individuals use to manage and mitigate stressors in their lives.

Epinephrine

A hormone and neurotransmitter also known as adrenaline, secreted by the adrenal glands, that increases heart rate, contracts blood vessels, dilates air passages, and participates in the fight-or-flight response.

ADH

Antidiuretic Hormone, a peptide hormone that plays a crucial role in regulating water balance in the body by increasing water reabsorption in the kidneys.

Physiological Processes

Functions and activities occurring in living organisms that contribute to growth, metabolism, and reproduction.