Statistical Literacy Which of the following are continuous variables, and which

Question

Statistical Literacy Which of the following are continuous variables, and which are discrete? (a) Number of traffic fatalities per year in the state of Florida (b) Distance a golf ball travels after being hit with a driver (c) Time required to drive from home to college on any given day (d) Number of ships in Pearl Harbor on any given day (e) Your weight before breakfast each morning 2. Statistical Literacy Which of the following are continuous variables, and which are discrete? (a) Speed of an airplane (b) Age of a college professor chosen at random (c) Number of books in the college bookstore (d) Weight of a football player chosen at random (e) Number of lightning strikes in Rocky Mountain National Park on a given day 3. Statistical Literacy Consider each distribution. Determine if it is a valid probability distribution or not, and explain your answer. (b)

Explanation / Answer

1)

a) Number is a discrete variable as can't exist in fraction

b) Distance is continuous in nature

c)Time is continuous in nature

d) Discrete

e) Continuous

2)

a)Continuous

b)Continuous

c)Discrete

d)Continuous

e)Discrete

3)

a) It is valid distrbution as sum of probabilities =0.25+0.6+0.15=1

b) Not valid as sum of probabilities =0.25+0.6+0.2=1.05 which is not equal to 1.

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