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vazorg [7]
3 years ago
5

6.11 - 1.2 7 5 5 6 6

Mathematics
2 answers:
andrey2020 [161]3 years ago
7 0
6.11 - 1.2 = 6.11
your answer is 6.11
Alex777 [14]3 years ago
4 0

Answer:

4.91 hope this helps :D

Step-by-step explanation:

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Look at the tree diagram for tossing a coin three times. Find the probability of getting exactly two tails.
lana66690 [7]

Answer:

3/4

Step-by-step explanation:

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6 0
3 years ago
A veterinary researcher takes a random sample of 60 horses presenting with colic. The average age of the random sample of horses
Licemer1 [7]

Answer:

Probability that a sample mean is 12 or larger for a sample from the horse population is 0.0262.

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;

                    Z = \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \bar X = average age of the random sample of horses with colic = 12 yrs

            \mu = average age of all horses seen at the veterinary clinic = 10 yrs

   \sigma = standard deviation of all horses coming to the veterinary clinic = 8 yrs

         n = sample of horses = 60

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)

   P(\bar X \geq 12) = P( \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } } \geq \frac{12-10}{\frac{8}{\sqrt{60} } } ) = P(Z \geq 1.94) = 1 - P(Z < 1.94)

                                                 = 1 - 0.97381 = 0.0262

Therefore, probability that a sample mean is 12 or larger for a sample from the horse population is 0.0262.

4 0
3 years ago
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Goshia [24]

Answer:

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Step-by-step explanation:d

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Answer: the square root of 30 is simplified to 5...

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Step-by-step explanation:

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3 years ago
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If anything is above 5 it will round up
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3 years ago
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