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choli [55]
3 years ago
8

Jennifer is playing with a die that has six faces. what is the likelihood that she will roll a four?

Mathematics
2 answers:
galben [10]3 years ago
5 0

Answer:

The answer is - unlikely event.

Step-by-step explanation:

Jennifer is playing with a die that has six faces. Lets assume that it is a fair die.

Probability of getting a four is = \frac{1}{6}= 0.17

For an event to be likely, it should be above 1/2. Below 1/2 it is unlikely.

Hence, here this event is unlikely to occur.

Anestetic [448]3 years ago
3 0
1/6
There's one four and six sides
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A national study report indicated that​ 20.9% of Americans were identified as having medical bill financial issues. What if a ne
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Answer:

The​ p-value for this​ test is 0.22065.

Step-by-step explanation:

We are given that a national study report indicated that​ 20.9% of Americans were identified as having medical bill financial issues.

A news organization randomly sampled 400 Americans from 10 cities and found that 90 reported having such difficulty.

<u><em>Let p = proportion of Americans who were identified as having medical bill financial issues in 10 cities.</em></u>

SO, Null Hypothesis, H_0 : p \leq 20.9%   {means that % of Americans who were identified as having medical bill financial issues in these 10 cities is less than or equal to 20.9%}

Alternate Hypothesis, H_A : p > 20.9%   {means that % of Americans who were identified as having medical bill financial issues in these 10 cities is more than 20.9% and is more severe}

The test statistics that will be used here is <u>One-sample z proportion</u> <u>statistics</u>;

                                  T.S.  = \frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }  ~ N(0,1)

where, \hat p = sample proportion of 400 Americans from 10 cities who were found having such difficulty =  \frac{90}{400} = 0.225 or 22.5%

            n = sample of Americans = 400

So, <u><em>test statistics</em></u>  =  \frac{0.225-0.209}{{\sqrt{\frac{0.225(1-0.225)}{400} } } } }

                               =  0.77

<u></u>

<u>Now, P-value of the test statistics is given by the following formula;</u>

         P-value = P(Z > 0.77) = 1 - P(Z \leq 0.77)

                                            = 1 - 0.77935 = 0.22065

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3 years ago
At a speed of 22 revolutions per minute, how long will it take a wheel of radius 10,
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lukranit [14]

Answer:

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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