Suppose a Population Has a Mean of 90 and a Standard

question 75

Multiple Choice

Suppose a population has a mean of 90 and a standard deviation of 28.If a random sample of size 49 is drawn from the population, the probability of drawing a sample with a mean of less than 84 is ___.

• A)0.9332
• B)0.0668
• C)0.4332
• D)0.8664
• E)1.0000

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Definitions:

Carbon-Rich Remains

Organic material that has a high carbon content, often found in fossils or peat, resulting from the decomposition of living organisms.

Natural Gas

A fossil fuel consisting primarily of methane, used as an energy source for heating, cooking, and electricity generation.

Autotrophic

Referring to organisms that can produce their own food from inorganic substances using light or chemical energy, such as plants and some bacteria.

Heterotrophic

Organisms that obtain their energy by consuming other living or dead organisms.