The Probability That a Call Received by a Certain Switchboard

question 196

Multiple Choice

The probability that a call received by a certain switchboard will be a wrong number is 0.02.Use the Poisson approximation to the binomial distribution to find the probability that among 140 calls received by the switchboard,there are no wrong numbers.

• A)0.9392
• B)0.0608
• C)0.1703
• D)0.8297
• E)0.0669

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Definitions:

Steroid

A type of organic molecule with a characteristic molecular structure containing four rings of carbon atoms (three six-membered and one five-membered).

Terpenes

A large and diverse class of organic compounds, produced by a variety of plants, characterized by their strong smell and used in a wide range of applications, including perfumes and medicines.

C:H Ratio

The ratio of carbon atoms to hydrogen atoms in a molecular structure, often used to characterize organic molecules and hydrocarbons.

Diterpene

A chemical compound composed of four isoprene units, part of a larger family of terpenes, found in various plants and contributing to their aroma, flavor, and biological activities.