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3 years ago

There are two taxi companies in town. Local Cab charges a $3 initial charge and then

Mathematics

1 answer:

Anton [14]3 years ago

3 0

Answer:

your answer for that problem is 45.6

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Suppose that 22 thank-you notes are written and 22 envelopes are addressed. accidentally, the notes are randomly inserted into

podryga [215]

$|\Omega|=22!=1,124,000,727,777,607,680,000\\ |A|=1\\\\ P(A)=\dfrac{1}{1,124,000,727,777,607,680,000}$

7 0

4 years ago

Is the environment a major issue with Americans? To answer that question, a researcher conducts a survey of 1255 randomly select

Furkat [3]

Answer:

The point estimate of this proportion is $\pi = 0.5857$

The 95% confidence interval to estimate the proportion of Americans who feel that the environment is a major issue with them is (0.5584, 0.6130).

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

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 1255, \pi = \frac{735}{1255} = 0.5857$

The point estimate of this proportion is $\pi = 0.5857$

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:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5857 - 1.96\sqrt{\frac{0.5857*0.4143}{1255}} = 0.5584$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5857 + 1.96\sqrt{\frac{0.5857*0.4143}{1255}} = 0.6130$

The 95% confidence interval to estimate the proportion of Americans who feel that the environment is a major issue with them is (0.5584, 0.6130).

7 0

3 years ago

Read 2 more answers

Replace the ? with one of the following symbols (<, >, =, or ≠) for 2 + 3 ? 4 + 1

Alina [70]

2 + 3 is 5

4 + 1 is 5

so they are equal. what sign is that?

3 0

4 years ago

Read 2 more answers

Find the value of y A. 65 B. 70 C. 35

gulaghasi [49]

Answer:

c 35 disputa se eu não asetar

4 0

3 years ago

What is the product in simplest form? −611⋅34

Anton [14]

Correct Question:

What is the product in simplest form?

$-\frac{6}{11} \times \frac{3}{4}$

Answer:

$-\frac{9}{22}$ is the product in simplest form

Step-by-step explanation:

We can find the simplest form of solving two fractions. So, to make the fractions multiplication simple, multiply two fractions in the numerator and divide it by the denominators of the two fractions. In the given case,

$-\frac{6}{11} \times \frac{3}{4}$

To simplify, multiply both 6 and 3 in numerator and multiply 11 and 4 in denominator of two fractions. So, we get

$-\frac{18}{44}$

To simplify the above, divide 18 and 44 by their greatest common factor, which is 2. By doing this, we get

$-\frac{9}{22}$

8 0

4 years ago