Reba measured a house and its lot and made a scale drawing. She used the scale 9 inches = 7 feet. What is the scale factor of th
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Answer:
Probability that the fifth ball selected is red = 0.705
Step-by-step explanation:
Let
= Number of red balls after the 4th turn
⇒ ∈ { 0, 1, 2 }
Then,
P =
⇒
Now,
P(5th ball is red | = 2 ) = 0.
+
=
= 0.705
∴ we get
Probability that the fifth ball selected is red = 0.705