Estimation Memorization Flashcards
1
Q
US Population
A
300M
2
Q
California Population
A
40M
3
Q
NYC Population
A
8.5M
4
Q
World Population
A
7.5B
5
Q
Size of continental US
A
3M sq miles
6
Q
US Households
A
100M
7
Q
Average people per household in the US
A
3
8
Q
Life expectancy
A
80
9
Q
Median household income
A
$50,000
10
Q
Weight of an average car
A
4000 lbs
11
Q
Amazon S3 standard cost
A
$0.023/GB/month
12
Q
Average file size for a 90-min 720p movie
A
3.5G
13
Q
Average file size for a smartphone camera picture
A
3-5MB
14
Q
Average CTR for a search ad
A
1.91%
15
Q
Average landing page conversion rate
A
2.35%
16
Q
Average wifi bandwidth
A
~10Mbps
17
Q
Cost of iPhone X
A
$999
18
Q
Cost of Google Pixel 2
A
$650
19
Q
Cost of Amazon Echo (2nd Gen)
A
$85
20
Q
Dropbox Revenue
A
$1B
21
Q
Airbnb Revenue
A
$3B
22
Q
Google Revenue
A
$109B
23
Q
Facebook Revenue
A
$40B
24
Q
Apple Revenue
A
$215B
25
Netflix revenue
$12B
26
Google net income
$16.35B
27
Apple operating expen ses
$7.65B
28
Netflix user pop.
125M subscribers
29
Google drive user pop.
~1 B users
30
Uber driver pop
750k drivers
31
Twitter user MAU
336M MAU
32
of Americans who own a smart speaker
39M
33
of products Amazon sells
> 12M
