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4 years ago

60 POINTS BRAINLIEST

Mathematics

2 answers:

Mariana [72]4 years ago

5 0

60 POINTS BRAINLIEST

ANSWER QUESTIONS A B & C

PHOTO ATTACHED BELOW !!!!

A) Using the given spreadsheet as a basis, discuss the usefulness of a standard

deviation in a given dataset. You need to cite any literature sources you use.

B) Produce an appropriate fully-labeled chart to compare the gold, silver and

bronze medals totals of the 10 countries.

C) Use a suitable and fully-labeled chart to reflect the contribution of each

country to the overall medals total.

PLEASE HELP DUE TODAY!!60 POINTS BRAINLIEST

ANSWER QUESTIONS A B & C

PHOTO ATTACHED BELOW !!!!

A) Using the given spreadsheet as a basis, discuss the usefulness of a standard

deviation in a given dataset. You need to cite any literature sources you use.

B) Produce an appropriate fully-labeled chart to compare the gold, silver and

bronze medals totals of the 10 countries.

C) Use a suitable and fully-labeled chart to reflect the contribution of each

country to the overall medals total.

PLEASE HELP DUE TODAY!!60 POINTS BRAINLIEST

ANSWER QUESTIONS A B & C

PHOTO ATTACHED BELOW !!!!

A) Using the given spreadsheet as a basis, discuss the usefulness of a standard

deviation in a given dataset. You need to cite any literature sources you use.

B) Produce an appropriate fully-labeled chart to compare the gold, silver and

bronze medals totals of the 10 countries.

C) Use a suitable and fully-labeled chart to reflect the contribution of each

country to the overall medals total.

PLEASE HELP DUE TODAY!!

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Ira Lisetskai [31]4 years ago

5 0

Answer:

wait what are we supposed to do

Step-by-step explanation:

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There are 1,345 students in the school. The entire school is going on a field trip and needs to fit on buses that hold 55 studen

Anestetic [448]

Answer:1345/55=55

55buses will be needed

Step-by-step explanation:

7 0

3 years ago

Please help i don't understand this

tatyana61 [14]

Answer:

A. x = (k + c)/4

Step-by-step explanation:

In this question, they're asking for what x equals in terms of k.

You know that 4x - c = k

add c on both sides, you get:

4x = k + c

divide 4 on both sides to isolate the x variable, you get

x = (k + c)/4

It's a simple question when you think about it! If this helped, please mark it brainliest.....thank you....................

6 0

3 years ago

Using traditional methods, it takes 94 hours to receive a basic flying license. A new license training method using Computer Aid

nikdorinn [45]

Answer:

$z=\frac{95-94}{\frac{5}{\sqrt{210}}}=2.898$

$p_v =2*P(Z>2.898)=0.0038$

If we compare the p value and the significance level given $\alpha=0.05$ we see that $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, so we can conclude that the true mean is different from 94 at 5% of signficance.

Step-by-step explanation:

Data given and notation

$\bar X=95$ represent the sample mean

$\sigma=5$ represent the population standard deviation

$n=210$ sample size

$\mu_o =94$ represent the value that we want to test

$\alpha=0.05$ represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the mean is different from 94, the system of hypothesis are :

Null hypothesis: $\mu = 94$

Alternative hypothesis: $\mu \neq 94$

Since we know the population deviation, is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".

Calculate the statistic

We can replace in formula (1) the info given like this:

$z=\frac{95-94}{\frac{5}{\sqrt{210}}}=2.898$

P-value

Since is a two-sided test the p value would be:

$p_v =2*P(Z>2.898)=0.0038$

Conclusion

8 0

3 years ago

How do you work out 4/5 of 25/32 as fraction

Sphinxa [80]

$\frac{4}{5}*\frac{25}{32}=\frac{1}{1}*\frac{5}{8}\to\boxed{\frac{5}{8}}$

4 0

3 years ago

after reading a book for english class, 100 students were asked whether or not they enjoyed it. Nine twenty-fifths of the class

ruslelena [56]

99 16/25 or 2491/25
100-9/25= 99.64
99.64 as a mixed number is 99 16/25 or 2491/25 as an improper fraction

6 0

4 years ago