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Sedaia [141]
3 years ago
13

10. Is 6/10 greater or less than 2/5?

Mathematics
1 answer:
ddd [48]3 years ago
3 0
Maria ran farther. Tyler did more. hopefully this helps
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Pls help <br> Are they SSS or SAS??
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I think they are SAS but I'm not sure

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3 years ago
In triangle ABC, a = 4, b =5, angle c = 110, find length of median to the longest side
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3 years ago
A small town has 2000 families. The average number of children per family is mu = 2.5, with a standard deviation sigma = 1.7. A
Nikitich [7]

Answer:

Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:

Where \mu=2.5 and \sigma=1.7

We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And for this case the standard error would be:

\sigma_{\bar X} = \frac{1.7}{\sqrt{64}}= 0.2125

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Solution to the problem

Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:

Where \mu=2.5 and \sigma=1.7

We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And for this case the standard error would be:

\sigma_{\bar X} = \frac{1.7}{\sqrt{64}}= 0.2125

6 0
3 years ago
Abby's Bagel Shop recorded how many bagels it recently sold in each flavor.
Rom4ik [11]

Answer:

sry actually 4 out of the next 16 are blackberry

Step-by-step explanation:

6 0
2 years ago
A volume a cylinder: V = 1\3 pi [tex] x^{2} h solve for h PLZ HELP!!!
DedPeter [7]

Volume   =   π • r² • height

Height = Volume / (PI * radius^2)

Source www.1728.com/diamform.htm


7 0
3 years ago
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