Mathematics, 26.08.2019 20:00 stef65
You are given an urn with 100 balls (50 black and 50 white). you pick balls from urn one by one without replacements until all the balls are out. a black followed by a white or a white followed by a black is "a colour change". calculate the expected number of colour changes if the balls are being picked randomly from the urn.
Answers: 2
Mathematics, 20.06.2019 18:04
Which expressions are equivalent to the one below? check all that apply. 25x/5x a. 5x b. 5 c. 5x•5x/5x d. 25x e. (25/5)^x f. (25-5)^x
Answers: 1
Mathematics, 21.06.2019 17:30
Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie
Answers: 1
Mathematics, 21.06.2019 18:00
Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.
Answers: 1
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