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likoan [24]
3 years ago
12

HELP PLS

Mathematics
2 answers:
denpristay [2]3 years ago
8 0

Answer:

The slope is 9, and the y-intercept is -2.

Step-by-step explanation:

the slope-intercept form is y=mx+b

The slope is m and the y-intercept is -2

So the slope is 9, and the y-intercept is -2.

y=9x-2

Hope this helps!

melomori [17]3 years ago
8 0

Answer:

The slope is 9, and the y-intercept is -2.

Step-by-step explanation:

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M is directly proportional to r2 <br> When r=2, m=14<br> Work out the value of m when r=12
Genrish500 [490]

we have M is durectly porpotional to r^2

so M=(k)r^2

and when r=2, m=14

so 14=(k)(2)^2

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m= (7/2)(12)^2 =(7/2)(144) = 504

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forsale [732]

Answer:

a) The 99% CI for the true proportion of voters who prefer the Republican candidate is (0.3658, 0.6001). This means that we are 99% sure that the true population proportion of all voters who prefer the Republican candidate is (0.3658, 0.6001).

b) The upper bound of the confidence interval is above 0.5 = 50%, which meas that the candidate can be confidence of victory.

Step-by-step explanation:

Question a:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

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n = 120, \pi = \frac{58}{120} = 0.4833

99% confidence level

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b. If a candidate needs a simple majority of the votes to win the election, can the Republican candidate be confident of victory? Justify your response with an appropriate statistical argument.

The upper bound of the confidence interval is above 0.5 = 50%, which meas that the candidate can be confidence of victory.

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