A Small Town Has 8500 Adult Males and 5500 Adult

question 161

Multiple Choice

A small town has 8500 adult males and 5500 adult females. A sociologist conducted a survey and found that 40% of the males and 30% of the females drink heavily. An adult is selected at random from the town. What is the probability, rounded to four decimal places, that the person drinks heavily DH? ​

• A)Pr(DH) = 0.3607
• B)Pr(DH) = 0.3393
• C)Pr(DH) = 0.6357
• D)Pr(DH) = 0.1179
• E)Pr(DH) = 0.7250

Understand the importance of non-verbal communication in intercultural interactions.

Grasp the professional and social norms of communication in different cultures.

Recognize the effects of personalization in professional settings within North American culture.

Understand the implications of language policies on multinational corporation operations.

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Definitions:

Quartile

A type of quantile that divides a rank-ordered dataset into four equal parts.

Standard Normal Variable

A random variable that has a mean of 0 and a standard deviation of 1, following the standard normal distribution.

Standard Normal Curve

The graphical representation of a normal distribution that has a mean of zero and a standard deviation of one, used in probability theory and statistics.

Z-score

A statistical measure representing the number of standard deviations a data point is from the mean.