A Researcher Conducts a Study to Find Out How Many

question 14

Multiple Choice

A researcher conducts a study to find out how many days out of the country people had had in the previous year.Six people participated in the study and the numbers of days they had been out of the country were 0, 2, 5, 7, 1 and 0.Which of the following statements is true?

• A)The mean number of days abroad is 2.
• B)The median number of days abroad is 1.
• C)The median number of days abroad is 2.
• D)The modal number of days abroad is 2.
• E)The modal number of days abroad is 0.

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Definitions:

Mitral Valve

A valve in the heart located between the left atrium and left ventricle; it prevents the backflow of blood into the atrium.

Aortic Valve

A valve in the heart between the left ventricle and the aorta that prevents blood from flowing back into the heart.

Conducting System

A network of specialized cardiac muscle cells responsible for initiating and distributing the electrical impulses that stimulate heart contraction.

AV Valve

The atrioventricular (AV) valve regulates blood flow from the atria to the ventricles in the heart.