A Sample of Size 50 Is to Be Taken from an Infinite

question 25

Multiple Choice

A sample of size 50 is to be taken from an infinite population whose mean and standard deviation are 52 and 20, respectively. The probability that the sample mean will be larger than 49 is:

• A)0.4452.
• B)0.9452.
• C)0.8554.
• D)0.3554.

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Definitions:

Mining

The process of extracting minerals, metals, and other geological materials from the earth, typically from an ore body, lode, vein, seam, or placer deposit.

Transportation

The movement of goods and people from one location to another, encompassing various modes such as road, rail, air, and sea transport.

Unionization Rate

The proportion of workers in a specific sector or economy who are members of a labor union.

Retail Trade

The sale of goods and services to consumers for personal or household use, typically conducted through stores, online platforms, or direct sales.