A Certain Disease Only Affects Men 20 Years of Age

question 194

Multiple Choice

A certain disease only affects men 20 years of age or older. The chart shows the probability that a man with thedisease falls in the given age group. What is the probability that a randomly selected man with the disease isbetween the ages of 35 and 64? $$\begin{array} { c | c } \text { Age Group } & \text { Probability } \\\hline 20 - 24 & 0.004 \\25 - 34 & 0.006 \\35 - 44 & 0.14 \\45 - 54 & 0.29 \\55 - 64 & 0.32 \\65 - 74 & 0.17 \\75 + & 0.07\end{array}$$

• A) 0.75
• B) 0.14
• C) 0.32
• D) 0.29

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Definitions:

Pooled Variance

A method used to estimate the variance of two or more populations when the mean of each population may differ but the true variance is assumed to be the same.

Standard Error

The typical deviation found within the distribution of samples for a statistic, usually referring to the mean.

Independent Samples

Independent samples refer to two or more groups of data that are collected from separate, non-overlapping populations, ensuring they are not influenced by each other.

Normal Populations

The term "normal populations" relates to groups or sets of entities that exhibit characteristics distributed according to a normal (Gaussian) distribution.