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MA_775_DIABLO [31]
2 years ago
10

about 1/6 of the world population lives in india of this population about 600 million eligible voters if the world's population

is 6360 what the population of india and the fraction of eligible voters
Mathematics
1 answer:
e-lub [12.9K]2 years ago
5 0

Step-by-step explanation:

Given that,

About 1/6 of the world's population lives in india.

Total no of eligible votars = 600 million eligible voters

World's population = 6360

Population is India,

=\dfrac{1}{6}\times 6360 \\\\=1060

Fraction of eligible votars,

=\dfrac{600 }{1060}\\\\=\dfrac{30}{53}

Hence, this is the required solution.

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If f(x)=-x^3, g(x)=3x^2= 3x^2-1 and h(x)=2x+5 what is the degree of (fogoh) (x)
nekit [7.7K]

Answer:

Step-by-step explanation:

5 0
2 years ago
In 2002, the mean age of an inmate on death row was 40.7 years with a standard deviation of 9.6 years according to the U.S. Depa
marissa [1.9K]

Answer:

The <em>95% confidence interval</em> for the current mean age of death-row inmates is between 42.23 years and 35.57 years.

Step-by-step explanation:

The <em>confidence interval</em> of the mean is given by the next formula:

\\ \overline{x} \pm z_{1-\frac{\alpha}{2}}\frac{\sigma}{\sqrt{n}} [1]

We already know (according to the U.S. Department of Justice):

  • The (population) standard deviation for this case (mean age of an inmate on death row) has a standard deviation of 9.6 years (\\ \sigma = 9.6years).
  • The number of observations for the sample taken is \\ n = 32.
  • The sample mean, \\ \overline{x} = 38.9 years.

For \\ z_{1-\frac{\alpha}{2}}, we have that \\ \alpha = 0.05. That is, the <em>level of significance</em> \\ \alpha is 1 - 0.95 = 0.05. In this case, then, we have that the <em>z-score</em> corresponding to this case is:

\\ z_{1-\frac{\alpha}{2}} = z_{1-\frac{0.05}{2}} = z_{1-0.025} = z_{0.975}

Consulting a cumulative <em>standard normal table</em>, available on the Internet or in Statistics books, to find the z-score associated to the probability of, \\ P(z, we have that \\ z = 1.96.

Notice that we supposed that the sample is from a population that follows a <em>normal distribution</em>. However, we also have a value for n > 30, and we already know that for this result the sampling distribution for the sample means follows, approximately, a normal distribution with mean, \\ \mu, and standard deviation, \\ \sigma_{\overline{x}} = \frac{\sigma}{\sqrt{n}}.

Having all this information, we can proceed to answer the question.

Constructing the 95% confidence interval for the current mean age of death-row inmates

To construct the 95% confidence interval, we already know that this interval is given by [1]:

\\ \overline{x} \pm z_{1-\frac{\alpha}{2}}\frac{\sigma}{\sqrt{n}}

That is, we have:

\\ \overline{x} = 38.9 years.

\\ z_{1-\frac{\alpha}{2}} = 1.96

\\ \sigma = 9.6 years.

\\ n = 32

Then

\\ 38.9 \pm 1.96*\frac{9.6}{\sqrt{32}}

\\ 38.9 \pm 1.96*\frac{9.6}{5.656854}

\\ 38.9 \pm 1.96*1.697056

\\ 38.9 \pm 3.326229

Therefore, the Upper and Lower limits of the interval are:

Upper limit:

\\ 38.9 + 3.326229

\\ 42.226229 \approx 42.23 years.

Lower limit:

\\ 38.9 - 3.326229

\\ 35.573771 \approx 35.57 years.

In sum, the 95% confidence interval for the current mean age of death-row inmates is between 42.23 years and 35.57 years.

Notice that the "mean age of an inmate on death row was 40.7 years in 2002", and this value is between the limits of the 95% confidence interval obtained. So, according to the random sample under study, it seems that this mean age has not changed.

7 0
3 years ago
I really need help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Daniel [21]

Answer:

1/100

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please anybody help me to solve this question please help me​
irina [24]

Step-by-step explanation:

Akmal=A

Aisyah=B

Atikah=C

B=m

A=2m

C=2m+25

C-B=?

2m+25-m=

=m+25

6 0
2 years ago
Parking lot a is 1/4 Mile Long and 3/16 miles wide parking lot B is 3/8 mile long and 1/8 mile wide what is the difference betwe
djyliett [7]

Answer: There is no difference as the difference equals 0.

Step-by-step explanation:

Parking lot a is 1/4 Mile Long and 3/16 miles wide

Area = length × width

= 1/4 × 3/16

= 3/64

Parking lot B is 3/8 mile long and 1/8 mile wide

Area = length × width

= 3/8 × 1/8

= 3/64

Difference between the areas of parking lot A and B will be:

3/64 - 3/64

= 0

There is no difference.

7 0
3 years ago
Read 2 more answers
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