Recently, Facebook Made All of the Following Changes to Its

question 119

Multiple Choice

Recently, Facebook made all of the following changes to its site to improve the user experience EXCEPT:

• A)Facebook acquired Oculus, a virtual reality headset company.
• B)Facebook announced that a version of its News Feed was being tailored for images to appear on mobile devices.
• C)Facebook launched hashtags.
• D)Facebook eliminated privacy settings for all but it paid advertisers.
• E)Facebook was able to generate revenues by placing ads on the small screens of smartphones.

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Definitions:

Variable

A variable is an attribute that can take on various values among different individuals or across different times or places.

Confidence Level

The probability that a parameter will fall between two values for a specified proportion of times.

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the true population parameter with a specified level of confidence.

Precision

The consistency of outcomes given by multiple measurements in the same conditions without any variation.