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4 years ago

15

Hannah rolls two number cubes with the numbers 55536 6 on each what is the probability that she rolled two numbers with an even

sum

1 answer:

Jet001 [13]4 years ago

6 0

5/9

Using a table of outcomes, you can see that 20 of the possible 36 outcomes are even totals. Simplify for the 5/9 or roughly 56%

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You divide x by y to get the rate of change

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3 years ago

Marcy spent 8 minutes on the phone while routing 4 phone calls. In all, how many phone calls does Marcy have to route to spend a

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Answer: Marcy will need to route 10 calls to spend a total of 20 mintes on the phone.

Step-by-step explanation: 1 call = 2 minutes.

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3 years ago

Read 2 more answers

Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best po

mina [271]

Answer:

(a) The point estimate for the population proportion <em>p</em> is 0.34.

(b) The margin of error for the 99% confidence interval of population proportion <em>p</em> is 0.055.

(c) The 99% confidence interval of population proportion <em>p</em> is (0.285, 0.395).

Step-by-step explanation:

A point estimate of a parameter (population) is a distinct value used for the estimation the parameter (population). For instance, the sample mean $\bar x$ is a point estimate of the population mean <em>μ</em>.

Similarly, the the point estimate of the population proportion of a characteristic, <em>p</em> is the sample proportion $\hat p$ .

The (1 - <em>α</em>)% confidence interval for the population proportion <em>p</em> is:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

The margin of error for this interval is:

$MOE= z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

The information provided is:

$\hat p=0.34\\n=500\\(1-\alpha)\%=99\%$

(a)

Compute the point estimate for the population proportion <em>p</em> as follows:

Point estimate of <em>p</em> = $\hat p$ = 0.34

Thus, the point estimate for the population proportion <em>p</em> is 0.34.

(b)

The critical value of <em>z</em> for 99% confidence level is:

$z={\alpha/2}=z_{0.01/2}=z_{0.005}=2.58$

*Use a <em>z</em>-table for the value.

Compute the margin of error for the 99% confidence interval of population proportion <em>p</em> as follows:

$MOE= z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

$=2.58\sqrt{\frac{0.34(1-0.34)}{500}}$

$=2.58\times 0.0212\\=0.055$

Thus, the margin of error for the 99% confidence interval of population proportion <em>p</em> is 0.055.

(c)

Compute the 99% confidence interval of population proportion <em>p</em> as follows:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

$CI=\hat p\pm MOE$

$=0.34\pm 0.055\\=(0.285, 0.395)$

Thus, the 99% confidence interval of population proportion <em>p</em> is (0.285, 0.395).

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4 years ago

Determine whether the sequence below is arithmetic or geometric, and find the function that will produce any given term in the s

kondor19780726 [428]

Answer:

Geometric Sequence.

nth term = an = 16(1.5^(n-1).

Step-by-step explanation:

24/16 = 1.5

36/24 = 1.5

54/36 = 1.5

81/54 = 1.5

There is a common ratio between the terms so it is Geometric.

The nth term an = a1r^(n-1) where a1 = first term , r = common ratio.

So here we have an = 16(1.5)^(n-1).

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4 years ago

PLEASE ANSWER I WILL GIVE BRAINLIEST AND LOVE U FOREVER!

Alina [70]

Answer:

im not even sure this is right

Step-by-step explanation:

A=a+b 2h=2+1.1

2·3.4=5.27

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3 years ago