A Box Contains 14 Batteries of Which 6 Are Still

question 51

Multiple Choice

A box contains 14 batteries of which 6 are still working.Anne starts picking batteries one at a time from the box and testing them.Find the probability that at least one of the first four works.

• A)0.893
• B)0.015
• C)0.084
• D)0.930
• E)0.070

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Definitions:

Standard Deviation

A statistic that quantifies the amount of variation or dispersion of a set of data values, typically used to measure how spread out the numbers in a data set are.

Slope

A measure of the steepness, incline, or grade of a line, indicating the ratio of the vertical change to the horizontal change between two points on the line.

90th Percentile

A value below which 90% of the data points in a dataset fall.

Yearly Donations

The total sum of money given by donors to an organization within a year.