Free Probability models Practice Problems • Learn To Be

You are a space alien. You visit planet Earth and abduct

97

chickens,

47

cows, and

77

humans. Then, you randomly select one Earth creature from your sample to experiment on. Each creature has an equal probability of getting selected.

Create a probability model to show how likely you are to select each type of Earth creature.
Input your answers as fractions or as decimals rounded to the nearest hundredth.

Type of Earth creature	Estimated probability
Chicken	Your answer should be an integer, like $6$ a simplified proper fraction, like $3/5$ a simplified improper fraction, like $7/4$ a mixed number, like $1\ 3/4$ an exact decimal, like $0.75$ a multiple of pi, like $12\ \text{pi}$ or $2/3\ \text{pi}$
Cow	Your answer should be an integer, like $6$ a simplified proper fraction, like $3/5$ a simplified improper fraction, like $7/4$ a mixed number, like $1\ 3/4$ an exact decimal, like $0.75$ a multiple of pi, like $12\ \text{pi}$ or $2/3\ \text{pi}$
Human	Your answer should be an integer, like $6$ a simplified proper fraction, like $3/5$ a simplified improper fraction, like $7/4$ a mixed number, like $1\ 3/4$ an exact decimal, like $0.75$ a multiple of pi, like $12\ \text{pi}$ or $2/3\ \text{pi}$

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