Question 7 (Mandatory) (2 points) The number of endangered species for several groups are listed below. Mammals Birds Reptiles Amphibians United States 63 78 14 10 Foreign 251 175 64 If one endangered species is selected at random, find the probability that it is found in the United States and is a bird. 0.3083 0.5128 0.2840 0.4727 0.1176 Question 8 (Mandatory) (2 points) The number of endangered species for several groups are listed below. Mammals Birds Reptiles Amphibians United States 63 78 14 10 Foreign 251 175 64 If one endangered species is selected at random, find the probability that it is an amphibian. 0.0606 0.0361 90151 00271 0.0161 Question 9 (Mandatory) (2 points) A hundred people were tested their blood type and RH type, and the following table gives the result: A B RH+ 35 RH If one person is selected at random, find the probability that the person has @ blood type, given that she or he has RH- type. 0.429 0.390 0.133 0.060 0.450 Question 10 [Mandatory] (2 points) The sensitivity of a screening test is 0.95, and its specificity is 0.85. The rate of the disease for which the test is used is 0.002. What is the predictive value NEGATIVE of the test? 0.9999 0.9896 0.0022 0.9978 0.0125