The Difference Between the Histogram of 175 Behavior Problem Scores

question 18

Multiple Choice

The difference between the histogram of 175 behavior problem scores and a normal distribution is

• A) the normal distribution is continuous, while behavior problem scores are discrete.
• B) the normal distribution is symmetric, while behavior problem scores may not be.
• C) the ordinate of the normal distribution is density, the ordinate for behavior problems is frequency.
• D) Each of the previous choices is correct.

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Definitions:

Bacteriophages

Viruses that infect and replicate within bacteria, often used as tools in molecular biology and genetics.

Plasmids

Small, circular, double-stranded DNA molecules that are separate from a cell's chromosomal DNA and can replicate independently, often used in genetic engineering.

Recombinant Organisms

Organisms that have been genetically engineered by inserting DNA from a different organism to gain desired traits.

Sticky Ends

are the single-stranded overhangs left after DNA is cut by certain restriction enzymes, which can bond with complementary sticky ends of other DNA fragments.