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3 years ago

Help please, hurry

Mathematics

1 answer:

Lady bird [3.3K]3 years ago

8 0

The answer would be B

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A simple random sample of size nequals57 is obtained from a population with muequals69 and sigmaequals2. Does the population nee

dusya [7]

Answer:

The population does not need to be normally distributed for the sampling distribution of $\bar{X}$ to be approximately normally distributed. Because of the central limit theorem. The sampling distribution of $\bar{X}$ is approximately normal.

Step-by-step explanation:

We have a random sample of size $n = 57$ from a population with $\mu = 69$ and $\sigma = 2$ . Because n is large enough (i.e., n > 30) and $\mu$ and $\sigma$ are both finite, we can apply the central limit theorem that tell us that the sampling distribution of $\bar{X}$ is approximatelly normally distributed, this independently of the distribution of the random sample. $\bar{X}$ is asymptotically normally distributed is another way to state this.

6 0

2 years ago

What is x when: |5x|=3

MissTica

Answer:

3/5

Step-by-step explanation:

5x= 3

x= 3/5

hope you understand the answer

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4 0

3 years ago

Read 2 more answers

I need help with these question please help me!!

Elza [17]

The correct answer is n - 7 = 30

6 0

3 years ago

a coffee shop allows customers to choose 1 ingredient from each category. coffee or espresso cream, soy milk, or whole milk, cho

Anettt [7]

The categories are:-
1- Coffee
2- espresso cream
3- soy milk
4- whole milk
5- chocolate
6- caramel
7- whipped cream

Since John hates Caramel he hates 1 category so he likes the other 6 that means that he likes 6 of the 7 categories so he likes 6/7 of the category
So the probability is 0.86 of he liking his choice

8 0

3 years ago

Help, will give brainliest

VladimirAG [237]

Answer:

10.0

Step-by-step explanation:

4.0+8.0=12.0-2.0=10.0

5 0

3 years ago

Help please, hurry​

Help please, hurry