Estimation Memorization Flashcards by Aiden Yang | Brainscape

Q

US Population

A

300M

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Q

California Population

A

40M

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Q

NYC Population

A

8.5M

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Q

World Population

A

7.5B

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Q

Size of continental US

A

3M sq miles

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Q

US Households

A

100M

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Q

Average people per household in the US

A

3

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Q

Life expectancy

A

80

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Q

Median household income

A

$50,000

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Q

Weight of an average car

A

4000 lbs

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Q

Amazon S3 standard cost

A

$0.023/GB/month

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Q

Average file size for a 90-min 720p movie

A

3.5G

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Q

Average file size for a smartphone camera picture

A

3-5MB

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Q

Average CTR for a search ad

A

1.91%

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Q

Average landing page conversion rate

A

2.35%

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Q

Average wifi bandwidth

A

~10Mbps

Q

Cost of iPhone X

A

$999

Q

Cost of Google Pixel 2

A

$650

Q

Cost of Amazon Echo (2nd Gen)

A

$85

Q

Dropbox Revenue

A

$1B

Q

Airbnb Revenue

A

$3B

Q

Google Revenue

A

$109B

Q

Facebook Revenue

A

$40B

Q

Apple Revenue

A

$215B

Q

Netflix revenue

A

$12B

Q

Google net income

A

$16.35B

Q

Apple operating expen ses

A

$7.65B

Q

Netflix user pop.

A

125M subscribers

Q

Google drive user pop.

A

~1 B users

Q

Uber driver pop

A

750k drivers

Q

Twitter user MAU

A

336M MAU

Q

of Americans who own a smart speaker

A

39M

Q

of products Amazon sells

A

> 12M