Clean coal controversy
or Causation? - lots of examples where this is the question.
Auto depreciation calculator:
(Thanks to Michael Grohall).
Could use this to compare with proportional depreciation with constant
proportions. This is nearly that, except for the big hit in the first
Darrell Huffs famous
to lie with statistics
(cheap, at Amazon.com)
- doubling up.
Betting: try starting a $5 bet, double when you
lose, start over when you win.
Rules: Keep odds 0.5 (should be probability!), ratio 1, set maximum
bet to 1000 (house limit).
Simulation. Set money lower limit to 0, check that box and no others
(play 'til you go broke).
Money: Start with $100 - enough to make 20 losing bets.
Run Simulation - see how long it takes you to go broke, highest bet,
- See what happens as you vary some of the starting values:
- Give the house a 2% advantage by setting the ratio to 0.98.
- Allow yourself to play longer by starting with more money, or
reducing the initial bet.
- Try to figure out what some of the other inputs mean.
to lie with statistics. UC SantaCruz environmental toxicology course
Constructing a histogram in Excel:
Energy overview - go to Table 1.1 to download Excel spreadsheet.
2005 energy flow
History of Energy in the United States: 1635-2000
www.fueleconomy.gov/feg/driveHabits.shtml. (Thanks to ... for
finding this site.)
Weighted averages in Excel.
Most of these could be considered "liberal," "Democratic." "left wing"
analyses. That might be my bias, or the bias of people who post on the
web - or it might just be a correct assessment of what's happening.
The Skeptical Optimist - a
well written relatively conservative blog on economic policy.
of words in English and some other interesting numbers.
- lots of
2005 Christian Science Monitor article on tv power consumption
Here's a local, text only version.
Lots of sound advice and statistics about gambling at this on line
wizardofodds.com/ . Visit,
read, don't play ... .
Housing opportunity index:
The Housing Opportunity Index (HOI) for a given area is defined as the
share of homes sold in that area that would have been affordable to a
family earning the local median income based on standard mortgage
underwriting criteria. Therefore, there are really two major
components -- income and housing cost.
For income, NAHB uses the annual median family income estimates for
metropolitan areas published by the Department of Housing and Urban
Development. NAHB assumes that a family can afford to spend 28
percent of its gross income on housing; this is a conventional
assumption in the lending industry. That share of median income is
then divided by twelve to arrive at a monthly figure.
Here's downloaded data and a