Astronomers Have Searched for Extrasolar Planets for Decades

question 59

Multiple Choice

Astronomers have searched for extrasolar planets for decades. Which one of these statements about the current status of the search is NOT true?

• A) No evidence of planets beyond our own solar system has been found.
• B) Astronomers have seen disks of material around stars that resemble the solar nebula believed to be an early stage in the formation of our solar system.
• C) Astronomers have seen asteroid belts around other stars.
• D) Astronomers actually have images of other stars being orbited by planets.

Identify and interpret interaction between factors in a factorial experiment.

Describe and perform steps necessary for conducting a factorial experiment.

Analyze and create an ANOVA table from experimental data.

Determine the significance of differences among levels of a factor in a factorial experiment.

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Definitions:

Re-

A prefix meaning again or back, used to indicate repetition or reversal.

Prefix

A collection of characters placed before a word to alter its definition, like 'un-' in 'unhappy'.

Ad-

A prefix meaning toward or in the direction of, often used in medical terms.

Prefix

An affix placed before the stem of a word to alter its meaning or create a new word, for example, 'pre-' in 'preview'.