7 of 12 (1 point) 4 2 Section Exercise 14 Qu States Foreign States Foreign Mamma

Question

7 of 12 (1 point) 4 2 Section Exercise 14 Qu States Foreign States Foreign Mammals Birds Reptiles Check Answer 63 247 10 24 88 168 15 7 14 Solve It Guided Solution Show Example Ask My Instructor Link to Textbook 63 23 16 6 10 Download data Choose one species at random. Find the probability of selecting the species for the following. Round your answers to three decimal places Part 1 P(threatened and in the United States)-076 Save for Later Submit Assignment Part 2 P (endangered foreign bird)-.219 Part 3 out of 3 P (mammal or threatened foreign species) -

Explanation / Answer

(a) Probability that a species is threatened and in the united states=58/(174+484+58+51)=0.076

(b) Probability of endangenered foreign bird=168/767=0.219

(c) Probability of (mammal or threatened foreign species)=

Sum of mammals=(63+247+10+24)=344.........(1)

Sum of threatened foreign species=(7+16+4)=27 , here we need to exclude threatened foreign mammals as it has already been considered in equation (1)

Probability of (mammal or threatened foreign species)=(344+27)/767=0.4837

Endangenered Threatened USA Foreign USA Foreign Mammals 63 247 10 24 Birds 88 168 15 7 Reptiles 14 63 23 16 Amphibians 9 6 10 4 Total 174 484 58 51

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