Market Sizing

Question 1

Price per GB

Answer 1

.08-0.1 per GB

Question 2

US Population

Answer 2

3*10^8

Question 3

World Population

Answer 3

7*10^9

Question 4

Radius of Earth

Answer 4

6*10^3 km

Question 5

Circumference of earth

Answer 5

4.0*10^4 km

Question 6

Tall Man’s Stride

Answer 6

1m

Question 7

1km in miles

Answer 7

0.6m

Question 8

1 meter/second in mph

Answer 8

2mph

Question 9

Average people per household (US)

Answer 9

3

Question 10

Households in US

Answer 10

1*10^8

Question 11

Life expectancy (US)

Answer 11

80 years

Question 12

Life expectancy (world)

Answer 12

65-70 years

Question 13

European population

Answer 13

7*10^8

Question 14

Hours in a year

Answer 14

9*10^3

Question 15

Minutes in a year

Answer 15

5*10^5

Question 16

Google consolodated company revenue

Answer 16

5*10^10

Question 17

Google (segment) Company profit

Answer 17

16*10^9

Question 18

Number of google desktop users

Answer 18

192 million

Question 19

Google (only) revnue

Answer 19

4.6*10^10

Question 20

Google headcount (2013)

Answer 20

42k

Question 21

Google plus (instream) users

Answer 21

300 million

Question 22

Google share of US search market

Answer 22

66%

Question 23

Number of gmail monthly users

Answer 23

425 million

Question 24

Number of google searches (2012)

Answer 24

1.8*10^12

Question 25

What is the process for answering a market sizing question?

Answer 25

Step 1-Clarify the question

For every part of the question, ask clarifying questions to acertain the meaning of all words in question

Step 2- Catalog what you know (or wish you knew)

List out all the variables you will use in the formula

Step 3- Make an Equation

with variables from last part filled in

Step 4- Think about edge cases or alternate sources

Does the answer include edge cases (does that include illegal x, or broken y)?

Step 5 - Break it down

Break each variable into numbers that can be calculated

Step 6 - Review and state your assumptions

Go through why you are using numbers in certain places and why your formulas make sense

Step 7- Do the math

actually do the math

Step 8 - Sanity Check

Make sure the numbers make sense

Question 26

Asia population

Answer 26

4 billion

Question 27

How to calculate when something will double

Answer 27

Rule of 72. Dive 72 by anual percentage increase.

Question 28

Gallon of water weighs

Answer 28

10 pounds

Question 29

number of kids aged 6-18

Answer 29

45 million

Question 30

Percent people in every age group

Answer 30

300 million/80 = 4 million per year

Question 31

Seattle Population

Answer 31

City-600,000

MSA - 3.5 Million

Question 32

New York population

Answer 32

8.5 million

MSA: 20 Million

Question 33

LA Population

Answer 33

4 Million

MSA: 13 Million

Question 34

Chicago

Answer 34

3 Million

MSA: 10 Million

Question 35

Boston Population

Answer 35

500k

4.5 Million

Question 36

Character storage

Answer 36

UTF8 unicode has one byte per character