Assume That a Researcher Randomly Selects 14 Newborn Babies and Counts

question 161

Multiple Choice

Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities
corresponding to the 14 possible values of x are summarized in the given table. Answer the question using the table. $$\begin{array}{l}\text { Probabilities of Girls }\\\begin{array} { | c | c | c | c | c | c | } \hline x \text { (girls) } & P ( x ) & x \text { (girls) } & P ( x ) & x \text { (girls) } & P ( x ) \\\hline 0 & 0.000 & 5 & 0.122 & 10 & 0.061 \\1 & 0.001 & 6 & 0.183 & 11 & 0.022 \\2 & 0.006 & 7 & 0.210 & 12 & 0.006 \\3 & 0.022 & 8 & 0.183 & 13 & 0.001 \\4 & 0.061 & 9 & 0.122 & 14 & 0.000 \\\hline\end{array}\end{array}$$
-Find the probability of selecting exactly 5 girls.

• A) 0.122
• B) 0.001
• C) 0.022
• D) 0.061

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Definitions:

Variable Overhead Efficiency Variance

A measure in managerial accounting that evaluates the efficiency of variable overhead resource utilization by comparing the actual hours worked to the standard hours allowed for the actual production achieved.

Standard Costing

An accounting method that assigns predetermined costs to cost units, used to control costs and measure performance.

Labour Efficiency Variance

The difference between the actual labor hours used and the standard labor hours expected for the level of production achieved.

Variable Overhead

Indirect manufacturing costs that vary with the level of production output, such as utilities and maintenance expenses.