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3 years ago

Determine the median of the data. 2, 3, 3, 4, 5, 7, 9

Mathematics

2 answers:

alexandr1967 [171]3 years ago

5 0

Answer:

The median of the data is 4.

Step-by-step explanation:

The median means the middle number of a given number.

To decide which one is the median, arrange in ascending or descending order. But sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

So, Determine the median of the data. 2, 3, 3, 4, 5, 7, 9

It is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

Our answer is 4.

Hope this helps!

satela [25.4K]3 years ago

3 0

The median is 4 because 2 x’s out 9, 3 x’s out 7, 3 x’s out 5, and 4 is the only remaining number.

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Fofino [41]

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3 years ago

Consider a value to be significantly low if its z score less than or equal to minus−2 or consider a value to be significantly hi

ziro4ka [17]

Answer:

If the weight is higher than 5.8886 gr would be considered significantly high

If the weight is lower than 5.6121 gr would be considered significantly low

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".

Solution to the problem

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

$X \sim N(5.75241,0.06281)$

Where $\mu=5.75241$ and $\sigma=0.06281$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

For the case when z =-2 we can do this:

$-2 = \frac{X-5.75241}{0.06281}$

And if we solve for X we got:

$X = 5.75241 -2*0.06281 =5.6121$

And for the other case when Z=2 we have:

$2 = \frac{X-5.75241}{0.06281}$

And if we solve for X we got:

$X = 5.75241 +2*0.06281 =5.8886$

If the weight is higher than 5.8886 gr would be considered significantly high

If the weight is lower than 5.6121 gr would be considered significantly low

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3 years ago

Which expressions go in which box?

almond37 [142]

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* Consists of one or more terms
* Variables are only with positive whole exponents
* No variables in the denominator of any term (the coefficients however, can be fractions.)

In that case the answer is most likely: