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2 years ago

City records showed that 0.8% of new homes had no

Mathematics

1 answer:

storchak [24]2 years ago

3 0

Answer:

The decimal would be 0.008.

If you wanted a fraction in simplest form, it would be 1/125.

Step-by-step explanation:

0.8% divided by 100 (move the decimal in the percent two places to the left) = 0.008

0.008 as a fraction is 8/1000, and then you divide both numbers by their GCF of 8, which will give you a fraction in simplest form of 1/125.

I hope this helps!

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A group of 59 randomly selected students have a mean score of 29.5 with a standard

algol [13]

Answer:

$29.5-1.671\frac{5.2}{\sqrt{59}}=28.37$

$29.5+1.671\frac{5.2}{\sqrt{59}}=30.63$

And we can conclude that the true mean for the scores are given by this interval (28.37; 30.63) at 90% of confidence

Step-by-step explanation:

Information given

$\bar X = 29.5$ represent the sample mean

$\mu$ population mean

s= 5.2 represent the sample standard deviation

n=59 represent the sample size

Confidence interval

The confidence interval for the true mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=59-1=58$

The Confidence interval is 0.90 or 90%, the significance is $\alpha=0.1$ and $\alpha/2 =0.05$ , and the critical value is $t_{\alpha/2}=1.671$

Now we have everything in order to replace into formula (1):

$29.5-1.671\frac{5.2}{\sqrt{59}}=28.37$

$29.5+1.671\frac{5.2}{\sqrt{59}}=30.63$

And we can conclude that the true mean for the scores are given by this interval (28.37; 30.63) at 90% of confidence

8 0

2 years ago

Which equation illustrates the Multiplicative Inverse Property? A. 0 • 16 = 0 B. 1(48) = 48 C. 3 • (1/3) = 1 D. 9(1 + 0) = 9(1)

Talja [164]

Answer:

it's letter DDDDDDDDD

4 0

3 years ago

Really struggling with this, can someone please help me out and give me a brief explanation? Id greatly appreciate it.

dsp73

Answer:

jjjjjjjjjjjjjjjjjjjjj

Step-by-step explanation:

7 0

3 years ago

What is 7 1/2 - 3 4/41

Radda [10]

The LCD of 2 and 41 is 82 so we write 1/2 as 41/82:-

7 41/82 - 3 8/82

= 4 33/82 Answer

7 0

3 years ago

Read 2 more answers

Verbal expression for 3x^2

slega [8]

One expression could be three x to the power of two. Let me know if that's right :)

6 0

3 years ago