In a class of 6, there are 2 students who forgot their lunch. If the teacher chooses 2 students, what is the probability that bo
1 answer:
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Answer:
second marble is blue and first marble is white is
Step-by-step explanation:
given data
two marbles
box = 1 blue, 3 white, 2 green, and 2 red marbles
solution
we get here second marble is blue and given that the first marble is white
= P(3c1 × 1c1) ÷ P(3c1 × 7c1) ................................................1
= 1c1 ÷ 7c1
= 1 ÷ 7
so second marble is blue and first marble is white is