Find the Indicated Probability

question 48

Multiple Choice

Find the indicated probability
-In a poll, respondents were asked whether they had ever been in a car accident. 196 respondents indicated that they had been in a car accident and 118 respondents said that they had not been in a car accident. If one of these respondents is randomly selected, what is the probability of getting someone who has been in a car accident? Round to the nearest thousandth, if necessary.

• A)0.376
• B)0.624
• C)0.005
• D)1.661

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Definitions:

Dependent

Referring to a variable in scientific research that is expected to change as a result of manipulations of independent variable(s).

Nonparametric Statistics

Statistical methods that do not assume a specific distribution of data and are useful for analyzing ordinal or nominal data.

Parametric Statistics

A category of statistical techniques that assume data come from a type of probability distribution and involve parameters (such as the mean and variance) in that distribution.

Research Hypothesis

A statement of inequality between two variables. See Null hypothesis.