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The Art of Jumping Rope. By: Michael L., Andrew S., Andy …. Introduction.

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The Art of Jumping Rope

By: Michael L., Andrew S., Andy …

  • In our Minute to Win It lab, we measured how many times a person could make a full rotation w/ a jump rope in 1 min. Our variables were blocked by gender, whether or not the person ate breakfast and whether or not the person played any sports.
  • Some outliers were expected but not many came up and only in specific situations
  • Skill w/ jump rope also a key factor

Quantitative Data

-slightly right skewed

-spread 19-166


Quant. Data Cont.

IQR – 89

Mean – 86.42

Median – 79

Min – 19

Max – 166


Normal Prob. Plot

-Data follows the line across, therefore it is normal


Gender Display

-Female center is smaller than male center (78 and 83.5)

-Spreads very similar (126F, 124M)

-The only outlier would be the 166 RPM in the girls plot, exceeding everyone else

-Gender doesn’t seem to change too much


Sports Display

-Spread much higher for people who play sports

-Centers (63.5N) and (92Y) are also far apart showing the difference of playing sports

-Positive influence of playing sports on jump roping

-One outlier for the non-sport people (exceeding expectations)


Sep. Partner Data

-IQR’s (72M) and (107.25A)

-Spread is very close as well

-Centers are the main difference (71M) (119.5A)

-Some significant difference in either the test taker or the instructor


Two-Way Table

-This table is very complicated


Marginal Distributions


38.7% 61.3%


Indep. Categorical Data

Sports v. Breakfast:

-P(AПB)= P(A)x P(B) (overlap/total)

-(A)= no sports (B)= yes breakfast

-7/31= (12/31)x(21/31)

-.226= .2622

-2nd test

-(A)= yes sports (B)= no breakfast

-5/31= 19/31 x 10/31

-.1613= .1977

Both roughly the same gap between answers showing consistently in the testing. The numbers aren’t close enough together to call them independent, thus making them two dependent variables.


-All in all the test came out a success

-Trends showed that people who ate breakfast and played sports were more successful with their jump roping. It was only a slight win however.


Possible Error or Bias?

-Subconsciously giving friend a few extra jumps

-Losing count (even w/ tallying the paper)

-Not starting the timer soon enough

-Inability to keep up w/ jumper’s pace