Diameter in cm. Bubble Number. Bubble Number Diameter in cm

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Corey Watts
5 years ago
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1 Bubble lab Data Sheet Blow bubbles and measure the diameter to the nearest whole centimeter. Record in the tables below. Try to blow different sized bubbles. Name: Bubble Number Diameter in cm Bubble Number Diameter in cm Copy your 10 diameters onto an index card. This will be randomly distributed amongst the class for the 2 nd set of 10 bubbles. Find the following: 1 Who blew the largest bubble? 2 Who blew the smallest bubble? 3 Who blew the oddest shaped bubble? 4 Who came up with the best strategy for blowing bubbles? 5 Who was the fastest bubble blower? 6 Who was the slowest bubble blower? Enter your data into the class spreadsheet. Keep your data where you will be able to find it as you will need this for your Chapter 10 project. The project requirements,, and rubric can be printed from my website.

2 Project Instructions and 1. Find the measures of central tendency for your bubbles. (mean, median, mode, range). a. If an 21 st bubble was added to the data and it had a diameter of 9 cm: i. Would your mean increase, decrease or stay the same? If it changes, by how much? ii. Would your median increase, decrease or stay the same? If it changes, by how much? iii. Would the 21 st bubble change your mode? Describe. iv. Would your range increase, decrease, or stay the same? If it changes, by how much? v. How does your range, median, mode, and mean compare to the class data? Part 1 Rubric above correctly and 7 or more between 5 and 6 your between 3 and 4 between 1 and 2 did not show your 2. Create a double box-and-whisker plot. Label each important element of the plot and describe what it represents. Find the interquartile range. Compare your measures of central tendency (20 bubbles) to the class measures of central tendency. Are there any outliers? Describe the overall shape of your distribution. a. What is the range of numbers for the lower 25%? Write your answer as an inequality. b. What is the range of numbers for the upper 50%? Write your answer as an inequality. c. What if you made a and copied your smallest bubble ly. The bubble diameter should have been 10 times greater. Recalculate your values using this new value instead of your smallest bubble. i. Describe (in detail) how that would change your box-and-whisker plot. ii. Would the middle 50% be affected? If so, how? Part 2 Rubric Box-and-Whisker Plot You correctly created a box-andwhisker plot. You correctly labeled the x-axis and labeled each point on the plot boxand-whisker plot is all correct plot is plot is 50% correct plot and. Questions and showed your 4 3 your 2 1 question You box-andwhisker plot is and there are no labels. did not show your

3 3. Create a a histogram using your data and the class data. a. Describe (in detail) the distribution (skewness) of the data. b. If 3 bubbles were added to your 20 bubbles that had diameters of 3 cm, 7 cm, and 12 cm, does that effect the distribution of your data? If so, how? You will need to adjust these intervals to be consistent and work with your class. d 5 5 < d 10 10< d 15 d > 15 Total bubbles Class bubbles Part 3 Rubric Frequency histogram You correctly created a table and a histogram and labeled all correct parts. Intervals are consistent histogram are and all labels are correct histogram are histogram and table are 50% some histogram and table are. There is no histogram and table. and your is. the no answer correctly but there is an. there was no. 4. Create a two way relative table comparing the size of the bubbles to the gender of the student. a. What is the joint relative of male bubbles that are at least 1 but no more than 10 cm? (5 th period no more than 14) b. What is the marginal relative of bubbles that are at least 11 cm? (5 th period at least 15) c. What percent of bubbles were no more than 10 cm and blown by a female student? (5 th period no more than 14) d. Find the conditional relative given that the bubbles is greater than 1 but no more than 5 cm(5 th period 7 cm), and blown by a male student. You will need to adjust these intervals to be consistent and work with your class. Use the intervals given in class. Gender size d 5 5 < d < d 15 d > 15 Total Male female Total

4 Part 4 Rubric Two way table You correctly created a two way table You labeled the axis correctly. Intervals are consistent table is all correct table is some labels are table is 50% some labels are. Questions and your is. the no answer correctly but there is an. table is in there are no labels. there was no. 5. Find the Standard deviation of your data. Compare your standard deviation to the class standard deviation. This chart may be copied to your final presentation. First find the mean of your data. Bubble Diameter Lengths x Deviation from the mean x x Squared Deviation (x x ) 2 Mean of the Squared Deviation Square root of the mean of the squared deviation (round to nearest tenth)

5 Standard Deviation Rubric You correctly calculated the standard deviation end of the calculations middle of the calculations. beginning of the calculations. calculate the mean correctly, therefore everything is. answer the question. 6. Create a visual presentation (posterboard, book, etc.) of above. Be sure to include answers to each of the above. ***All graphs must be completed by hand (no computer generated will be accepted.)*** visual unique and creative. All graphics can easily be seen and read. I can easily find your parts 1-5. visual creative. easily be seen. I can find your parts 1-5 visual acceptable. parts 1-5 are not easily seen. visual not acceptable. parts 1-5 are not easily seen. You visual presentation is messy or too small. You have no parts 1-5. complete the presentation. You used computer generated graphs.

STT 315 Section /19/2014

STT 315 Section /19/2014 Name: PID: A STT 315 Section 101 05/19/2014 Quiz 1A 50 minutes 1. A survey by an electric company contains questions on the following: Age of household head, Gender of household head and use of electric