Suppose only 30% of all drivers come to a complete stop at an intersection having flashing red lights in all directions when no other cars are visible. What is the probability that, of 25 randomly chosen drives coming to an intersection: a. Exactly 4 will come to a complete stop? b. The tenth car that comes to the intersection is the second to stop? c. How many of the 25 drivers do you expect to come to a complete stop?
Added by Isabel M.
Step 1
To find the probability that exactly 4 out of 25 drivers come to a complete stop, we can use the binomial probability formula: P(X = k) = (n choose k) * p^k * (1-p)^(n-k) where X is the number of drivers who come to a complete stop, n is the total number of Show more…
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