AP Statistics 2017

(Marvins-Underground-K-12) #1

Free Response Answers to Practice Test 2, Section II




  1.          Fencing Team

    a. A back-to-back stem plot with split stems will do nicely:




Key:    6   |   2   =   62  inches
b. The distribution of women’s heights seems slightly skewed to the right, while that of the men
seems somewhat symmetric. Both the center and spread of the distribution of men’s heights is
greater than that of the women’s.



  1.          Using   the tree    diagram below:  


  2. Grapefruit at the farmers’ market.
    a. It appears that the center of this symmetric distribution is approximately 428 grams. In a

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