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soldi70 [24.7K]
3 years ago
8

The 2012 Super Bowl had an attendance of just 68,658 people in the newspaper the next day read about 70,000 people attended the

Super Bowl held in the newspaper round to estimate the total number of people in the attendance. Please Help!
Mathematics
2 answers:
Drupady [299]3 years ago
8 0

Answer:

Step-by-step explanation:

The paper estimated by rounding in to the nearest ten-thousand,

because the thousands number 8 is ≥ 5 they rounded 6 up to 7, making it 70,000.

Y_Kistochka [10]3 years ago
8 0
The answer would be 70,000 when you round up from 68,658
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There are 10 combinations
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3 years ago
Jane’s mobile phone plan charges $0.05 per minute at daytime rates before 8 p.m. and $0.03 per minute at nighttime rates after 8
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Answer:

minutes at daytime rate: 3.00

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total cost of call: $8.55

Step-by-step explanation:

split up the hours so you have the 5 cent charge per minute for 1 hour and you have the 3 cents a minute for an hour and a half after 8.

multiply 5 cents a minute by 60 to get the amount of money for the first hour($3.00),

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8 0
3 years ago
In a sample of 42 water specimens taken from a construction site, 26 contained detectable levels of lead. Construct a 95% conden
S_A_V [24]

Answer:

The 95% confidence interval for the proportion of water specimens that contain detectable levels of lead is (0.472,0.766).

Step-by-step explanation:

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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This means that n = 42, \pi = \frac{26}{42} = 0.619

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

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The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.619 + 1.96\sqrt{\frac{0.619*0.381}{42}} = 0.766

The 95% confidence interval for the proportion of water specimens that contain detectable levels of lead is (0.472,0.766).

4 0
3 years ago
You have some candies in your pocket. A friend gives you five more candies. When you count all your candies you have 14
defon

Answer:

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Step-by-step explanation:

You are required to find the number of candies in your pocket

Let

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This can be represented by the equation:

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How many hours is 10:52 am to 4:53 pm?
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