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1 year ago

What can you say about the series an in each of the following cases?

SAT

1 answer:

Likurg_2 [28]1 year ago

7 0

The exercise is related to the Ratio Test for Convergence. The rules for this kind of test are given below.

<h3>What are the rules for Ratio Test for Convergence?</h3>

The rules are:

If the limit is less than 1 when conducting the ratio test, your series is definitely convergent.
The test is inconclusive if the limit is equal to 1.
The series is divergent if the limit is greater than 1.

Using this knowledge, we are able to state that

A is not conclusive.
C's convergence is absolute.
There is divergence with D and E.
B and F appear to be employing the nth-term test. The nth-term involves determining the sequence's limit as it approaches infinity.

The nth-term test determines whether a series is divergent if the limit is bigger than 0, thus, both B and F are divergent series.

Please see the attached for the full question and the link below for more about Ratio Test for Convergence:

brainly.com/question/16618162

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A recent survey indicated that the mean time spent on a music streaming service is 210 minutes per week for the population of a

Lapatulllka [165]

There are different variations in population size. The best reason why the simulation of the sampling distribution is not approximately normal is that The sample size was not sufficiently large.

<h3>What takes place if a sample size is not big enough? </h3>

When a sample size taken by a person or a researcher is not big or inadequate for the alpha level and also analyses that one have chosen to do, it will limit the study statistical power.

Due to the above, the ability to know a statistical effect in one's sample if the effect are present in the population is greatly reduces.

See full options below

Which of the following would be the best reason why the simulation of the sampling distribution is not approximately normal?

A The samples were not selected at random.

B The sample size was not sufficiently large.

с The population distribution was approximately normal.

D The samples were selected without replacement.

E The sample means were less than the population mean.

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2 years ago

ILL GIVE BRAINLEST PLEASE HELP

Lynna [10]

Answer:

Deductive reasoning<em> is when you make a logical argument by applying facts and evidence to back you up. Problem solving is similar to this because when you solve a problem, you consider all the evidence to support your claim. Like, you can't just say "School is hard for students" without evidence to support this, you need to answer </em>why<em> school is hard and </em>how<em> it affects them.</em>

<em>Hope this helps you.</em>

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2 years ago

Mention the importance of occupations??

lorasvet [3.4K]

Answer:

The importance of occupation are:

1 .Occupation helps us to maintain our living standard. ...

2. It enhances the qualification, skills and capacities of professionals.

3. It keeps one busy and disciplined.

4. It lead country to rapid pace development.

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3 years ago

Until the late 1800s what was the<br>purpose of a secondary education in<br>the United States?

Brums [2.3K]

<u>ANSWER: </u>

Until the late 1800s, the purpose of secondary education in the US was a basic one where the children under all age groups were taught in a common room in the school. The students of secondary classes are meant to teach the primary ones.

<u>EXPLANATION: </u>

It has also been said that until the late 1800s, girls and minorities were not given admission to high schools for secondary education.

During the late 1800s, Boston opened a public high school for girls so that women acquired an opportunity to learn secondary education.

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2 years ago

How many grams of sucrose, c12h22o11, must be added to 500. G of water at 100°c to change the vapor pressure to 752 mm hg?.

denpristay [2]

The mass number of sucrose that must be added to 500 g of water is 100.979 grams

To be able to solve this question, we need to use the number of moles concept and mole fraction concept.

<h3>What is the number of moles?</h3>

The number of moles is related to the mass of the substance divided by the molar mass of the substance.

From the given parameters;

The number of moles of water = mass/molar mass

Mass of water = 500 g
the molar mass of water = 18.02 g/mol

number of moles = 500 g/ 18.02 g/mol

number of moles = 27.75 moles

However,

the standard vapor pressure of the solvent $\mathbf{P^0_{water}}$ = 760 mmHg

the vapor pressure of the solute = 752 mmHg

Using the mole concept:

$\mathbf {X_{C_{12}H_{22}O_{11}} = \dfrac{n_{C_{12}H_{22}O_{11}}}{n_{H_2O}+n_{C_{12}H_{22}O_{11}}} }$

By relative lowering of vapor pressure:

$\mathbf{\dfrac{P^0_{H_2O} - P_{H_2O}}{P^0_{H_2O}} = X_{C_{12}H_{22}O_{11}}}$

$\mathbf{\dfrac{760 -752}{760} = \dfrac{n_{C_{12}H_{22}O_{11}}}{27.75 +n_{C_{12}H_{22}O_{11}}} }}$

$\mathbf{0.01053 = \dfrac{n_{C_{12}H_{22}O_{11}}}{27.75 +n_{C_{12}H_{22}O_{11}}} }}$

$\\ \\ \mathbf{0.01053 (27.75) +0.01053 (n_{C_{12}H_{22}O_{11}} ) = n_{C_{12}H_{22}O_{11}}}$

$\\ \\ \mathbf{0.2922075 =0.98947
 (n_{C_{12}H_{22}O_{11}} )}$

$\\ \\ \mathbf{ (n_{C_{12}H_{22}O_{11}} ) = \dfrac{0.2922075 }{0.98947}}$

$\\ \\ \mathbf{ (n_{C_{12}H_{22}O_{11}} ) =0.295 \ moles}$

The mass of sucrose = number of moles × molar mass

The mass of sucrose = 0.295 moles × 342.3 g/mol

The mass of sucrose = 100.979 grams

Learn more about number of moles here:

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1 year ago