An Isotope of Krypton Has a Half-Life of 3 Minutes

question 17

Multiple Choice

An isotope of krypton has a half-life of 3 minutes. A sample of this isotope produces 1000 counts per minute in a Geiger counter. Determine the number of counts per minute produced after 15 minutes.

• A)zero
• B)15
• C)30
• D)60
• E)1000

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Definitions:

Gym Visits

The number of times an individual attends a gym or fitness center within a given timeframe.

Probability Distribution

A mathematical function that defines the probabilities of all possible outcomes for a random variable.

Standard Deviation

A measure of the dispersion or variability within a set of numerical data, indicating how spread out the values are from the mean.

Independent Variables

Variables in an experiment or model that are manipulated or classified to determine their effect on dependent variables.