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3 years ago

Which of the following survey questions would the least biased?

Mathematics

2 answers:

arlik [135]3 years ago

6 0

Answer:

D- Would you like to waste taxpayersy money to build a new skate park

TEA [102]3 years ago

4 0

D would be the right answer

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Is f(x)=e^2 an exponential function? If so what is its base? If not, why?

makkiz [27]

Answer:

No. It is a constant function.

Step-by-step explanation:

The function f(x) = e^2 is not an exponential functional. Rather, it is a constant function. The reason for this is that in f(x) = e^2, there is no x involved on the right hand side of the equation. The approximate value of e is 2.718281, and the approximate value of 2.718281^2 is 7.389051. This means that f(x) = e^2 = 7.389051. It is important to note that for any value of x, the value of the function remains fixed. This is because the function does not involve the variable x in it. The graph of the function will be a line parallel to the x-axis, and the y-intercept will be 7.389051. For all the lines parallel to x-axis, the value of the function remains the same irrespective of the value of x. Also, the derivative of the function with respect to x is 0, which means that the value of the function is unaffected by the change in the value of x!!!

6 0

3 years ago

Before every flight, the pilot must verify that the total weight of the load is less than the maximum allowable load for the air

mr Goodwill [35]

Using the normal probability distribution and the central limit theorem, it is found that the probability is of 0.9974 = 99.74%, which means that the pilot should take action.

<h3>Normal Probability Distribution</h3>

In a normal distribution with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

It measures how many standard deviations the measure is from the mean.

After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

In this problem, for the population, the mean and the standard deviation are given by, respectively:

$\mu = 185.47, \sigma = 39$ .

For a sample of 37 passengers, we have that:

$n = 37, s = \frac{39}{\sqrt{37}} = 6.4116$

The probability that the aircraft is overloaded is one subtracted by the p-value of Z when X = 167.6, hence:

$Z = \frac{X - \mu}{\sigma}$

By the Central Limit Theorem:

$Z = \frac{X - \mu}{s}$

$Z = \frac{167.6 - 185.47}{6.4116}$

$Z = -2.79$

$Z = -2.79$ has a p-value of 0.0026.

1 - 0.0026 = 0.9974.

There is a 0.9974 = 99.74% probability that the aircraft is overloaded. Since this is a very high probability, the pilot should take action.

To lern more about the normal probability distribution and the central limit theorem, you can check brainly.com/question/24663213

4 0

2 years ago

Calculate the value of this expression. no work needed, just the answer.

Serga [27]

its .25 my gggggg

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

How do you round 5 1/8 to the nearest whole number

Sholpan [36]

You would round this number to 5. this is because the fraction is closest to the whole number five. if the fraction would have been 5 7/8, you would round it to 6.
i hope this helped!!!

6 0

3 years ago

Read 2 more answers

Beth is flying a kite with 300 feet of string. The kite gets stuck in a tree, so she ties the other end of the string to a rock

Paraphin [41]

Answer:

$\displaystyle 172.1 ft$