Helical Gears Are Being Discussed

question 42

Multiple Choice

Helical gears are being discussed. Technician A says helical gears are used in modern transmissions because they don't produce axial thrust. Technician B says in a helical gearset two or more teeth mesh at the same time, which distributes tooth load and produces a very strong gear. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)neither A nor B

Understand the characteristics of the chi-squared distribution.

Apply the chi-squared goodness-of-fit test to various data sets.

Calculate expected frequencies for cells in a chi-squared test.

Distinguish between different statistical tests and when to use them.

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A condition characterized by a disinterest in engaging in sexual activities or having sexual thoughts.

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