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3 years ago

Express the set of real numbers between but not including 2 and 5 as follows.

Mathematics

1 answer:

Mashcka [7]3 years ago

7 0

2 < x < 5

i think this is the answer

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Dion is performing a hypothesis test in which the population mean is 92 and the standard deviation is 2. His sample size is 7 wi

ehidna [41]

Answer:

Option 3rd is correct

1.98

Step-by-step explanation:

Using the formula:

$z = \frac{X-\mu}{\frac{\sigma}{\sqrt{n}}}$

where,

X is the sample mean, $\mu$ is the mean, $\sigma$ is the standard deviation and n is the sample size.

As per the statement:

Dion is performing a hypothesis test in which the population mean is 92 and the standard deviation is 2. His sample size is 7 with a mean of 93.5

⇒X = 93.5, n = 2 , $\mu = 92$ and $\sigma = 2$

Substitute these given values to calculate z;

$z = \frac{93.5-92}{\frac{2}{\sqrt{7}}} = \frac{1.5}{0.755928946} = 1.98431348$

Therefore, the z-statistic for the given data is, 1.98

4 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=10%7B%20-%201%7D%5E%7B2%7D%20%7B%20-%202%7D%5E%7B%20-%202%7D%20" id="TexFormula1" title="10{ -

AVprozaik [17]

$\bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad 
a^n\implies \cfrac{1}{a^{-n}}
\\\\
-------------------------------\\\\
10-1^2-2^{-2}\implies 10-1-\cfrac{1}{2^2}\implies 9-\cfrac{1}{4}\implies \cfrac{36-1}{4}\implies \cfrac{35}{4}$

8 0

4 years ago

In the set of numbers from 1 to 10, which elements are in both the subset of even numbers, and the subset of multiples of 5?

user100 [1]

Answer:

Step-by-step explanation:

Let A = set of numbers from 1 - 10

A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

Let B = subset of A which are even numbers

B = {2, 4, 6, 8, 10}

Let C = subset of A which are multiples of 5

C = {10}

which elements are in both the subset of even numbers, and the subset of multiples of 5:

AnB means elements which appears in both set B and C

BnC = {5}

5 0

3 years ago

PLEASE HELP!!! 100 PTS +Brainliest!!!Given the following values, which point would be considered an outlier?

True [87]

Answer:

Option C, (6, 8.4)

Step-by-step explanation:

It would be option C because all of the other ones, both the y and x value is almost the same. (2, 2.1) (4, 3.8) and (9, 9) are all really close in y and x values. While (6, 8.4) has a y value that is over 2 more than x.

Answer: Option C, (6, 8.4)

3 0

3 years ago

What is 34 +(23 +3)-82

shepuryov [24]

Answer:

-22

Step-by-step explanation:

26-82=-56

-56+34=-22

7 0

3 years ago

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