The probability of selecting a type B plant is given by the number of type B seedlings divided by the total number of seedlings. Therefore, the probability is:
Number of Type B seedlings = 140
Total number of seedlings = 100 + 140 + 80 + 60 + 40 = 420
Probability = 140/420 = 1/3
Therefore, the probability that the farmer will randomly pick a type B plant is 1/3.
Plant Types A B C D E
Number of Seedlings 100 140 80 60 40
A farmer conducted an inventory on his two square kilometers of rainforest; the results are in the table. He plans on randomly selecting a seedling to experiment on when he goes back to the forest. What is the probability that he will randomly pick a type B plant? Write your answer in the simplest form of a fraction.
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