Find the Expected Value of the Random Variable What Is the Expected Value of Thunderstorms for the Town

question 111

Multiple Choice

Find the expected value of the random variable. Round to the nearest cent unless stated otherwise.
-The probability distribution below describes the number of thunderstorms that a certain town may experience during the month of August. Let X represent the number of thunderstorms in August. $$\begin{array} { l | l l l l } \text { Number of storms } & 0 & 1 & 2 & 3 \\\hline \mathrm { P } ( X = \mathrm { X } ) & 0.1 & 0.2 & 0.5 & 0.2\end{array}$$ What is the expected value of thunderstorms for the town each August? Round the answer to one
Decimal place.

• A)2.0
• B)1.5
• C)1.9
• D)1.8

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Definitions:

Organic Product

A substance resulting from the chemical reactions of organic compounds, often used in various industries.

Reaction

A series of reactions where initial substances, the reactants, are turned into different resulting substances, the products.

PhNHCHO

PhNHCHO, also known as N-phenylformamide, is an organic compound featuring a formamide group attached to a phenyl ring.

Benzene

Aromatic hydrocarbon well-known for its hexagonal ring structure, consisting of six carbon atoms connected by alternate single and double bonds.