The Number of Cell Phone Minutes Used by High School

question 110

Multiple Choice

The number of cell phone minutes used by high school seniors follows a normal distribution with a mean of 500 and a standard deviation of 50.What is the probability that a student uses more than 580 minutes?

• A)0.152
• B)0.0548
• C)0.848
• D)0.903

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Definitions:

Identical Twins

Twins who originate from a single fertilized egg that splits and develops into two separate embryos, sharing the same genetic makeup.

Zygote

The cell formed by the union of a sperm and an egg at the beginning of conception, representing the earliest stage of human development.

Fertilization

The process by which male and female reproductive cells (gametes) combine to produce a new cell (zygote) that will develop into a fetus.

Gene Expressions

The process by which the information encoded in a gene is used to direct the assembly of a protein molecule.