Section C Section C Checkpoint

Problem 1

In a game, creatures are given an element and a power level. Creatures with power level over 100 have a second skill they can use, so it is useful to separate them by that value.
75 creatures are categorized in the two-way table.

power <100< 100 power ≥100\geq 100 total
fire 22 28 50
water 22

3

 25
total 44 31 75
power <100< 100 power ≥100\geq 100 total
fire 44% 56% 100%
water 100%
  1. Complete the table with the relative frequency for the water creatures.
  2. Based on the relative frequencies, do you think there is an association between creature element and power? Explain your reasoning.
Show Solution
Solution
  1.  
    power <100< 100 power ≥100\geq 100 total
    fire 44% 56% 100%
    water 88% 12% 100%
  2. There is an association between creature element and power. Sample reasoning: Because the percentages for the power levels are very different based on creature element, the 2 variables are associated.
Show Sample Response
Sample Response
  1.  
    power <100< 100 power ≥100\geq 100 total
    fire 44% 56% 100%
    water 88% 12% 100%
  2. There is an association between creature element and power. Sample reasoning: Because the percentages for the power levels are very different based on creature element, the 2 variables are associated.