Pilate tagged 15 seals in the Columbia River. One month later, she spotted 6 of the tagged seals out of 20 seals spotted. What is an estimate for the size of the seal population in the Columbia River? A.4 seals
B.25 seals
C.30 seals
D.50 seals

Idon't want to fail summer school.the probabilities of contamination in medicine capsules due to the presence of heavy metals and different types of microbes are given in the table.the probability of capsule b having microbial contamination is (the same as, greater than, less than) the probability of capsule d having it.