The Test Scores from a Recent Mathematics Test Are as Follows

question 44

Multiple Choice

The test scores from a recent Mathematics test are as follows: 95.5,65.9,93.2,88.6,56.8,50,86.4,54.5,40.9,77.3,79.5,65.9,70.5,77.3,81.8,50,79.5,and 68.2.The mean score was 71.2 with a standard deviation of 15.5.If the Normal model is appropriate,what percent of the scores will be greater than 86.7?

• A)15.87%
• B)0.15%
• C)10%
• D)34%
• E)2.28%

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Definitions:

Malpighian Tubules

Excretory structures in insects and some other arthropods that remove wastes from the body and help in osmoregulation.

Hemolymph

Fluid that circulates in an open circulatory system.

Insects

A class of arthropods characterized by a three-part body (head, thorax, abdomen), three pairs of jointed legs, compound eyes, and one pair of antennae.

Kidney Dialysis

is a medical treatment for removing waste and excess water from the blood, acting as an artificial replacement for lost kidney function.