CK-12 Basic Probability and Statistics - A Short Course

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 7. Organizing and Displaying Data - Basic


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  1. The fuel consumption of a car travelling at a speed of 72 km/h is approximately 10 L.

  2. The speed of a car that has a fuel consumption of 12 km/L is approximately 85 km/h

  3. The coldest day was July 7th.

  4. The hottest day was July 19th.

  5. There does not appear to be a change in temperature on July 1stand 2nd, July 10thand 11th, July 17th
    and 18th.

  6. Seattle

  7. Both cities appear to have rising temperature as the month progresses, but Seattle seems to have more
    hot days and on the 20th, the temperature is still rising. The temperature in New York seemed to rise on
    the 19thbut on the 20ththe temperature appears to drop off.

  8. There appears to be a difference of approximately 10 degrees between the temperatures of the cities

  9. The first graph is labeled correctly as being continuous data. The amount of fuel remaining in your gas tank is
    plotted for each hour you drive. However, the amount of fuel in your gas tank decreases every minute/second
    you drive. All values on the graph are meaningful and therefore can be joined. This is continuous data. The
    second graph is also labeled correctly as being discrete data. The cost of CDs is plotted for each CD you
    purchase. The cost to you changes only when another CD is purchased. The values between the plotted points
    are not meaningful and therefore are not joined. This is discrete data.

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