Mathematics, 18.12.2020 17:00 jimenagl
A fair number cube is rolled and then rolled again. Which statement
represents the probability of rolling an odd number and then rolling
another odd number?
A: There is a 3 out of 36 chance of rolling an odd number and then rolling another odd
number, so the probability is 1/12.
B: There is a 1 out of 2 chance of rolling an odd number and then rolling another odd
number, so the probability is 1/2.
C: The number of true outcomes in the sample space is 9, so the probability of rolling an
odd number and then rolling another odd number is 1/4
D: The number of true outcomes in the sample space is 6, so the probability of rolling an
odd number and then rolling another odd number is 1/6.
Answers: 1
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Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 21.06.2019 23:00
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A fair number cube is rolled and then rolled again. Which statement
represents the probability of r...
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