The Annual Incomes of All MBA Degree Holders Working in Los

question 50

Multiple Choice

The annual incomes of all MBA degree holders working in Los Angeles have a bell-shaped distribution with a mean of $72,000 and a standard deviation of $6,000.According to the empirical rule,the percentage of MBA degree holders working in Los Angeles who have an annual income of $54,000 to $90,000 is approximately:

• A)97.9%
• B)99.4%
• C)94.9%
• D)99.7%

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Definitions:

Zygomycetes

A class of fungi known for forming sexual spores called zygospores and mostly living as saprophytes.

Ascomycetes

A division or phylum of fungi characterized by the formation of spores in a special type of cell called an ascus, including yeasts and molds.

Plasmogamy

The fusion of the cytoplasm of two cells from different fungal hyphae, a stage in the sexual reproduction of fungi.

Karyogamy

The fusion of two nuclei within a cell, a key process in sexual reproduction resulting in the formation of a zygote.