Mathematics, 04.09.2021 20:20 anahitrejo1
In a car park the ratio of white cars to black cars is 2:7. The ratio of white cars to red cars is 3:11. Altogether there are 343 white, black and red cars. How many black cars are in the car park? Could anyone please teach me the method?
Answers: 3
Mathematics, 21.06.2019 18:30, Snowinvain
An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?
Answers: 1
Mathematics, 22.06.2019 01:30, reneebrown017
Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?
Answers: 1
In a car park the ratio of white cars to black cars is 2:7. The ratio of white cars to red cars is 3...
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