Mathematics, 02.03.2021 19:40 kaiya789
A gumball machine contains gumballs of five different colors: 26 red, 34 white, 15 blue, 20 green, and 5 orange. The machine dispenser randomly selects one gumball. The probability of getting a red is 13/50. What is the complement?
Answers: 1
Mathematics, 21.06.2019 19:40, evarod
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 22:00, goodperson21
White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.
Answers: 2
A gumball machine contains gumballs of five different colors: 26 red, 34 white, 15 blue, 20 green, a...
Mathematics, 12.04.2021 03:10
Mathematics, 12.04.2021 03:10
Mathematics, 12.04.2021 03:10
Mathematics, 12.04.2021 03:10
Mathematics, 12.04.2021 03:10
Mathematics, 12.04.2021 03:10