The Time Between Arrivals at an ATM Machine Follows an Exponential

question 25

Multiple Choice

The time between arrivals at an ATM machine follows an exponential distribution with θ = 10 minutes. Find the probability that between 15 and 25 minutes will pass between arrivals.

• A) 0.223130
• B) 0.082085
• C) 0.141045
• D) 0.305215

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Definitions:

Dipeptide

A molecule consisting of two amino acids joined by a single peptide bond.

Dehydration Reaction

A chemical reaction in which two molecules are joined together with the removal of water, common in the synthesis of organic compounds.

Hydrolysis Reaction

Splitting of a chemical bond by the addition of water, with the H+ going to one molecule and the OH− going to the other.

Cholesterol

A waxy, fat-like substance found in all cells of the body, important for making hormones, vitamin D, and substances that help digest foods.