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Elodia [21]
1 year ago
7

Advertisers contract with Internet service providers and search engines to place ads on websites. They pay a fee based on the nu

mber of potential customers who click on their ad. Unfortunately, click fraud—the practice of someone clicking on an ad solely for the purpose of driving up advertising revenue—has become a problem. According to BusinessWeek, 33% of advertisers claim they have been a victim of click fraud. Suppose a simple random sample of 330 advertisers will be taken to learn more about how they are affected by this practice.
a. What is the probability that the sample proportion will be within ±0.02 of the population proportion experiencing click fraud?

b. What is the probability that the sample proportion will be greater than 0.36?
Mathematics
1 answer:
larisa [96]1 year ago
7 0
Hehdhdhdjdudjdhakahhsu jejdjdjdjsbsjd
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A certain reaction is endothermic in the forward direction. The reaction has less moles of gas on the product side. Which of the
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decreasing the pressure

Step-by-step explanation:

i just took the test

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1 year ago
The table shows the cost of a taxicab ride for several driving distances.
s2008m [1.1K]

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oops didnt mean to click answer again

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2 years ago
James knows that when h walks, he takes about 120 steps per minute and that each step is 2.75 feet long. Which calculation is mo
Luba_88 [7]

Answer:

120*2.75*60/5280

= 3.75

Step-by-step explanation:

So James is walking at 120 steps a minute, there are 60 minutes in one hour, and 5,280 feet in a mile. So, to find how quickly James is walking, we multiply how many steps he is taking a minute by how much distance each step is (120 * 2.75) that gives us how much distance in one minute, so we then multiply by 60 because there are 60 minutes in one hour. Then divide the entire equation by how many feet are in one mile (5,280) giving us the answer 3.75 miles per hour. And the equation 120*2.75*60/5280

4 0
1 year ago
Read 2 more answers
Suppose a research paper states that the distribution of the daily sea-ice advance/retreat from each sensor is similar and is ap
Luda [366]

Answer:

The value of the parameter is λ is 0.03553357

Step-by-step explanation:

Consider the provided function.

f(x) = 0.5\lambda e^{-\lambda |x|} for −∞ < x < ∞.

It is given that standard deviation is given as 39.8 km.

Now we need to calculate the value of parameter λ.

The general formula for the probability density function of the double exponential distribution is: f(x)=\frac{e^{-|\frac{x-\mu}{\beta}|}}{2\beta}

Where μ is the location parameter and β is the scale parameter.

Compare the provided equation with the above formula we get.

\lambda=\frac{1}{\beta} and μ = 0.

Standard deviation = √2β

S.D=\sqrt{2} \beta\\\beta=\frac{39.8}{\sqrt{2}}\\\beta=28.1424

Now substitute the value of β in \lambda=\frac{1}{\beta}.

\lambda=\frac{1}{28.1424}=0.03553357

Hence, the value of the parameter is λ is 0.03553357

3 0
2 years ago
Adam is going to make concrete
hodyreva [135]

Answer:

90 kg of stone

Step-by-step explanation:

Adam has 8 x 25 = 200

19 x 22.5 = 427.5

20 x 50 = 1000

He has enough cement and sand

He needs 1090 - 1000 = 90 kg of stone

He needs 2 bags of stone

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1 year ago
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