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AlladinOne [14]
3 years ago
7

Please help would mean a lot :?)

Mathematics
2 answers:
Ray Of Light [21]3 years ago
5 0
A I think I don't know what your doing
ankoles [38]3 years ago
3 0
The answer is D

To find the mean of something, you have to add up all the numbers and then divide the sum by the amount of numbers you have.
- 10 +  - 30 +  - 25 + 15 + 35 =   \\  - 15 \\  - 15 \div 5 = 3
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Help asap, please!!!!!!!!
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The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard deviation 1.1. This distribution
cluponka [151]

Answer:

Step-by-step explanation:

Hello!

The definition of the Central Limi Theorem states that:

Be a population with probability function f(X;μ,δ²) from which a random sample of size n is selected. Then the distribution of the sample mean tends to the normal distribution with mean μ and variance δ²/n when the sample size tends to infinity.

As a rule, a sample of size greater than or equal to 30 is considered sufficient to apply the theorem and use the approximation.

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If the variable of interest is X: the number of accidents per week at a hazardous intersection.

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I hope it helps!

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