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3 years ago

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The estimated population of Fiji in 2019 was about 9 x 10^5. The estimated population of Gibraltar in the same year was about 3

x 10^4. About how many times greater was the population of Fiji than Gibraltar

1 answer:

lana [24]3 years ago

7 0

Answer:

30 times greater.

Step-by-step explanation:

We divide:

9 * 10^5 / 3 * 10^4

= 9/3 * 10^(5-4)

= 3 * 10^1

= 30.

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Suppose a large shipment of microwave ovens contained 12% defectives. If a sample of size 474 is selected, what is the probabili

melisa1 [442]

Answer:

$P(\hat p>0.14)$

And using the z score given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

Where:

$\mu_{\hat p} = 0.12$

$\sigma_{\hat p}= \sqrt{\frac{0.12*(1-0.12)}{474}}= 0.0149$

If we find the z score for $\hat p =0.14$ we got:

$z = \frac{0.14-0.12}{0.0149}= 1.340$

So we want to find this probability:

$P(z>1.340)$

And using the complement rule and the normal standard distribution and excel we got:

$P(Z>1.340) = 1-P(Z$

Step-by-step explanation:

For this case we have the proportion of interest given $p =0.12$ . And we have a sample size selected n = 474

The distribution of $\hat p$ is given by:

$\hat p \sim N (p , \sqrt{\frac{p(1-p)}{n}})$

We want to find this probability:

$P(\hat p>0.14)$

And using the z score given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

Where:

$\mu_{\hat p} = 0.12$

$\sigma_{\hat p}= \sqrt{\frac{0.12*(1-0.12)}{474}}= 0.0149$

If we find the z score for $\hat p =0.14$ we got:

$z = \frac{0.14-0.12}{0.0149}= 1.340$

So we want to find this probability:

$P(z>1.340)$

And using the complement rule and the normal standard distribution and excel we got:

$P(Z>1.340) = 1-P(Z$

4 0

4 years ago

Select the correct answer.

Ierofanga [76]

Answer:

$19.2x+96$ units

Step-by-step explanation:

The perimeter of a square is 4 times the length of one side.

The length of the sides of a square is given by the expression $4.8x+24$

To find the perimeter, we multiply this expression by 4.

$Perimeter=4(4.8x+24)$

We expand to obtain:

$Perimeter=4*4.8x+4*24$

This simplifies to:

$Perimeter=19.2x+96$

7 0

3 years ago

A bag is filled with small and large marbles. The ratio of small to large marbles is 1:3. On your own sheet of paper, draw a tap

tiny-mole [99]

Tape diagrams are simple. Look at the picture I put in the comments

8 0

3 years ago

Read 2 more answers

76°<br> 135°<br> 81°<br> X<br><br> X =<br><br> please help mee

jekas [21]

Answer:

68º

Step-by-step explanation:

This is a quadrilateral and all degrees in every quadrilateral have to add up to 360º.

81º + 135º + 76º = 292º

360º - 292º = 68º

Therefore, x = 68º

6 0

3 years ago

Please help me please help please help me please thank You

vlabodo [156]

Answer:

05

Step-by-step explanation:

1

8 0

3 years ago