7. An investment analyst has tracked a certain blue-chip stock for the past six months and found that on any given day it wither goes up a point or down a point. Furthermore, it went up on 25% of the days and down on 75 %. What is the probability that at the close of trading four days from now, the price of the stock will be the same as it is today? Assume that the daily fluctuations are independent events

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7. An investment analyst has tracked a certain blue-chip stock for the past six months and found
that on any given day it wither goes up a point or down a point. Furthermore, it went up on
25% of the days and down on 75%. What is the probability that at the close of trading four days
from now, the price of the stock will be the same as it is today? Assume that the daily
fluctuations are independent events
Transcribed Image Text:7. An investment analyst has tracked a certain blue-chip stock for the past six months and found that on any given day it wither goes up a point or down a point. Furthermore, it went up on 25% of the days and down on 75%. What is the probability that at the close of trading four days from now, the price of the stock will be the same as it is today? Assume that the daily fluctuations are independent events
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