Mathematics, 02.02.2020 22:49 aide1234564
The scale of a model train is 1 inch to 11.5 feet. one of the cars of the model train is 5 inches long. what is the length, in feet, of the actual car?
Answers: 2
Mathematics, 21.06.2019 16:50, gesic2003
Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?
Answers: 3
Mathematics, 21.06.2019 20:20, oscarmasinde44
Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.
Answers: 1
The scale of a model train is 1 inch to 11.5 feet. one of the cars of the model train is 5 inches lo...
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