58 |
Percentage of revenue per movie
|
hard
|
|
4.1
|
59 |
Percentage of revenue per movie by category
|
medium
|
|
4.1
|
60 |
Movie rentals and average rentals in the same category
|
hard
|
|
4.1
|
61 |
Customer spend vs average spend in the same store
|
hard
|
|
4.1
|
62 |
Shortest film by category
|
medium
|
|
4.2
|
63 |
Top 5 customers by store
|
hard
|
|
4.2
|
64 |
Top 2 films by category
|
hard
|
|
4.2
|
65 |
Movie revenue percentiles
|
easy
|
|
4.3
|
66 |
Movie percentiles by revenue by category
|
medium
|
|
4.3
|
67 |
Quartile by number of rentals
|
easy
|
|
4.3
|
68 |
Spend difference between first and second rentals
|
hard
|
|
4.4
|
69 |
Number of happy customers
|
hard
|
|
4.4
|
70 |
Cumulative spend
|
easy
|
|
4.1
|
71 |
Cumulative rentals
|
easy
|
|
4.1
|
72 |
Days when they became happy customers
|
medium
|
|
4.2
|
73 |
Number of days to become a happy customer
|
hard
|
|
4.2
|
74 |
The most productive actors by category
|
hard
|
|
4.2
|
75 |
Top customer by movie category
|
medium
|
|
4.2
|
76 |
Districts with the most and least customers
|
easy
|
|
4.2
|
77 |
Movie revenue percentiles by category
|
easy
|
|
4.3
|
78 |
Quartiles buckets by number of rentals
|
medium
|
|
4.3
|
79 |
Spend difference between the last and the second last rentals
|
hard
|
|
4.4
|
80 |
DoD revenue growth for each store
|
hard
|
|
4.4
|
83 |
Top search_query in US and UK on new year's day
facebook
|
medium
|
|
4.2
|
88 |
Top song report
spotify
|
medium
|
|
4.2
|
90 |
Top artist report
spotify
|
medium
|
|
4.2
|
103 |
Median and average session duration by day of the week
google
|
medium
|
|
4.3
|
105 |
Number of days gap between last two actions
google
|
hard
|
|
4.2
|
108 |
Free premium membership
amazon
|
hard
|
|
4.1
|
109 |
Top 3 most popular product categories
amazon
|
easy
|
|
4.2
|
110 |
Most popular product by category
amazon
|
medium
|
|
4.2
|
113 |
Daily cumulative spend
amazon
|
easy
|
|
4.1
|
114 |
Dod revenue change rate
amazon
|
easy
|
|
4.4
|
115 |
Rolling average revenue
amazon
|
hard
|
|
4.1
|
116 |
Top answers day by device
amazon
|
easy
|
|
4.2
|
117 |
Rolling 7 days total answers
amazon
|
easy
|
|
4.1
|
119 |
Top 2 countries by bookings
airbnb
|
hard
|
|
4.2
|
120 |
First ever booking
airbnb
|
hard
|
|
4.2
|
121 |
Week over week change of first ever bookings
airbnb
|
hard
|
|
4.4
|
122 |
Top country by wow growth
airbnb
|
hard
|
|
4.2
|
123 |
Top listing in the United States, United Kingdom and Canada
airbnb
|
medium
|
|
4.2
|
127 |
Average rating after 10th trip
uber
|
hard
|
|
4.2
|
135 |
Unlucky employees
robinhood
|
easy
|
|
4.2
|
137 |
Extremely late first orders
doordash
|
medium
|
|
4.2
|
139 |
Poor first delivery experience
doordash
|
medium
|
|
4.2
|
141 |
Cumulative sales of restaurant 100011
doordash
|
hard
|
|
4.1
|
142 |
First order date
afterpay
|
easy
|
|
4.2
|
144 |
Third order
afterpay
|
medium
|
|
4.2
|
145 |
Returning customers after first buy
afterpay
|
hard
|
|
4.2
|
147 |
2 days streak customers
google
|
hard
|
|
4.4
|
148 |
Most popular video category
google
|
medium
|
|
4.2
|
157 |
Number of trips before a driver got banned
lyft
|
medium
|
|
4.2
|
158 |
First trip completion rate
lyft
|
medium
|
|
4.2
|
165 |
Session stitching
walmart
|
hard
|
|
4.2
|
166 |
Top 10 customers based on spend growth
walmart
|
medium
|
|
4.2
|
180 |
Members moved from Microsoft to Google directly.
linkedin
|
hard
|
|
4.4
|
182 |
Top 5 content by number of watchers
netflix
|
medium
|
|
4.1
|
188 |
Top 1 popular question by department
google
|
hard
|
|
4.2
|
189 |
Campaign activation date
twitter
|
medium
|
|
4.1
|
195 |
MoM user growth
snap
|
hard
|
|
4.4
|
199 |
Students improvement
snap
|
hard
|
|
4.4
|
201 |
Top 3 students for each subject
snap
|
hard
|
|
4.2
|
203 |
Top product by country by month
apple
|
hard
|
|
4.2
|
208 |
Top 3 urls by testing groups
apple
|
hard
|
|
4.2
|
211 |
Top issuer by category
visa
|
medium
|
|
4.2
|
212 |
Highest spender's issuers
visa
|
hard
|
|
4.2
|
229 |
Time Between Repeat Purchases
microsoft
|
hard
|
-
|
4.4
|
230 |
Customer Purchase Trend Analysis
microsoft
|
easy
|
-
|
4.4
|