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INNUMERACY

INNUMERACY. What is innumeracy?. the inability to deal with simple math concepts the math version of illiteracy. Douglas R. Hofstadter. Earned B.S. in Math, M.S. in Physics, Ph.D. in Physics Wrote for Scientific America 1981-1983, coining term

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INNUMERACY

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  1. INNUMERACY What is innumeracy? • the inability to deal with simple math concepts • the math version of illiteracy

  2. Douglas R. Hofstadter Earned B.S. in Math, M.S. in Physics, Ph.D. in Physics Wrote for Scientific America 1981-1983, coining term Authored 8 books, earning Pulitzer Prize for one Teaches cognitive science at Indiana University Watch Letterman interview of John Allen Paulos on youtube.com! • Earned Ph.D. in Math • Teaches mathematics at Temple University • Innumeracy on New York Times bestseller list in 1989 John Allen Paulos

  3. TV weathercaster: There is a 50% chance of rain on Saturday and a 50% chance of rain on Sunday. Therefore, there is a 100% chance of rain over the weekend.

  4. Big Numbers What is the population of the world? 7.032 billion = 7,032,000,000 What percent of the world population is the United States? U.S. is 314 million = 314,000,000 so less than 5%

  5. Big Numbers What is one million? One million seconds = 11.5 days What is one billion? One billion seconds = 32 years

  6. Bill Gates’ net worth = ANNUAL INCOME of 1,370,421 people! Bill Gates $53 billion net worth Microsoft Given $28 billion To Gates Foundation

  7. “over three billion combinations… just one solution

  8. 120 BILLION

  9. Small Probabilities TN Education Lottery started 2004 1st day sold $10.8 million MegaMillions Game pick 5 numbers 1-56 pick megaball number 1-46 nine winning combinations

  10. Small Probabilities Jackpot $36 million Match all 5 and megaball Chance of winning Chance of dating a supermodel

  11. Small Probabilities As adult, play once per week Chance of winning Better chance of dying by storm

  12. Find the Innumeracy Can you figure out the mistake made in math or logic?

  13. Aftermath Counting An earthquake occurs. A reporter contacts all police departments, ambulance services, and hospitals for a count of the number of injuries and deaths. The reporter totals the counts and provides these sums to the public. What is innumeracy?

  14. Law of Averages You are rolling a die. You rolled: You will bet on rolling a six on the next roll, because that number has not come up and the probability of rolling a six is greater than that of rolling any other number. What is the innumeracy?

  15. Postoccurance Miracle You had a dream last night that an unusual event happens and this morning the dream comes true. The odds are really small that this will happen, right? What is the innumeracy?

  16. Dramadigits Normal body temperature is 98.6 degrees. A visitor to a natural history museum asks a guard how old the dinosaur skeleton is. The guard responds that it is 90,000,0006 years old. The visitor questions, “How do you know with such great accuracy?” The guard says, “Easy. They told me it was 90,000,000 years old when I started working here, and that was 6 years ago.” What is the innumeracy?

  17. Factorectomy Titanic is the top grossing movie of all time. What is the innumeracy?

  18. Ratiocinitis You have a store coupon that gives you 30% off anything you purchase. In the store, you see a jacket regularly priced at $100 on a sales rack that is 20% off. So you save 50%. What is the innumeracy?

  19. Graph Errors What is the innumeracy?

  20. Inaccurate Comparisons Who needs Italy when we have Illinois? Sure, the Niles Leaning Tower may be half as tall (94 ft versus 175) and half as crooked (it tilts 7 ft 4 inches instead of 13 ft) as the one in Pisa. What is the innumeracy?

  21. The “Kevin Bacon” Game Any famous person can connect to Kevin Bacon with less than six “degrees” of separation. Elvis Presley …married to Priscilla Presley …acted in Naked Gun with Leslie Nielson …acted in Airplane! with Lloyd Bridges …acted in Blown Away with Tommy Lee Jones …acted in JFK with Kevin Bacon What is the innumeracy?

  22. Conspiratorial Coincidence • Lincoln and Kennedy’s Strange Commonalities • Lincoln elected 1860, Kennedy 1960 • Names both seven letters long • Assassins both went by 3 names, 15 letters total • Booth shot Lincoln in theater and ran to warehouse, Oswald shot Kennedy in warehouse and ran to theater What is the innumeracy?

  23. Conspiratorial Coincidence • William McKinley and James Garfield • Both born and raised in Ohio • Both have 8 letters in last name • Both elected in years ending in 0 • Both VPs from New York City and w/mustaches • Both died in mid-September • Both were shot twice • Assassins have • foreign-sounding names

  24. Pick a person with whom you do not have much in common. Find 7 “Conspiratorial Coincidences” This is your next homework assignment!

  25. "79.48% of all statistics are made up on the spot.“ - John A. Paulos

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