Two of the Cylinders in an Eight-Cylinder Car Are Defective

question 23

Short Answer

Two of the cylinders in an eight-cylinder car are defective and need to be replaced. If two cylinders are selected at random, what is the probability that
a.both defective cylinders are selected?
b.no defective cylinder is selected?
c.at least one defective cylinder is selected?

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Definitions:

Pyrimidine Bases

Nitrogen-containing compounds found in DNA and RNA, including cytosine, thymine, and uracil.

Adenine

Adenine is one of the four nucleobase components of nucleic acids DNA and RNA, pairing with thymine in DNA and uracil in RNA.

Phosphodiester Linkage

A chemical bond that joins the sugar and phosphate groups of adjacent nucleotides in DNA or RNA.

Hydrogen Bonds

Weak bonds between two molecules caused by the electrostatic attraction between a proton in one molecule and an electronegative atom in the other.