"at least 4" = 4, 5, or 6.
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.
Online "^" is used to indicate an exponent, e.g., x^2 = x squared.
P(4) = .6^4 * .4^2
P(5) = .6^5 * .4
P(6) = .6^6
Either-or probabilities are found by adding the individual probabilities.
P(4,5 or 6) = P(4) + P(5) + P(6)
Or you could explore combinations and permutations.
https://www.google.com/search?client=safari&rls=en&q=combinations+permutations+probability&ie=UTF-8&oe=UTF-8&gws_rd=ssl
If a basketball player has a shooting percentage of 60% , find the probability that the player will make at least 4 of her next 6 shots?
1 answer
1 answer