Suppose a Scientist Holds a Press Conference at Which He

question 73

Multiple Choice

Suppose a scientist holds a press conference at which he claims that 10% of the matter in the Milky Way is in the form of dust grains. Does his claim seem reasonable? Why or why not?

• A) The 10% figure is too high because there are not enough heavy elements to make that much dust.
• B) It is reasonable because we already know that interstellar dust obscures our view through the disk of the galaxy.
• C) The 10% figure is too low because most of the mass of the galaxy is in the form of interstellar dust.
• D) It seems reasonable as long as we assume that red giant stars-which produce dust grains in their stellar winds-are more common than we thought.

Understand and calculate the expected value of transformed random variables.

Calculate the probability of specific events given a probability distribution.

Understand and apply the concept of covariance and correlation.

Understand the basics of IUPAC naming for organic compounds.

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Definitions:

Disagree

To have a difference of opinion or conflicting views about a particular subject.

Majority

The age at which a person is considered legally competent to consent to contracts and manage their own affairs; also, a quantity greater than half of a total.

Unanimous

Complete agreement or consent among all members or participants.

Partnership Agreement

A legal document that specifies the rights and obligations of partners within a business partnership.