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Elina [12.6K]
3 years ago
6

An auto dealership sells minivans and sedans. In January, they sold 10 minivans and 20 sedans. In February, they sold 7 minivans

and 14 sedans. During which month did the auto dealership sell a lower ratio of minivans to sedans?
Mathematics
1 answer:
zaharov [31]3 years ago
8 0

Answer:

january = 10/20 = 1/2

februry = 7/14 = 1/2

so, we conclude that the auto dealership didn't have a lower ratio, since the ratio is equal in both months.

<em>hope it helps :)</em>

<em />

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Answer:

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Step-by-step explanation:

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Licemer1 [7]

Answer:

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Step-by-step explanation:

We are given that a veterinary researcher takes a random sample of 60 horses presenting with colic. The average age of the random sample of horses with colic is 12 years. The average age of all horses seen at the veterinary clinic was determined to be 10 years. The researcher also determined that the standard deviation of all horses coming to the veterinary clinic is 8 years.

So, firstly according to Central limit theorem the z score probability distribution for sample means is given by;

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So, probability that a sample mean is 12 or larger for a sample from the horse population is given by = P(\bar X \geq 12)

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Answer:

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