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2 years ago

HELPPP PLEASE Here are two number line diagrams.

Mathematics

2 answers:

Ede4ka [16]2 years ago

8 0

The top one is called a open dot, they are similar because they are facing the same direction, they are different because the top is a open dot and the bottom is a closed dot

schepotkina [342]2 years ago

8 0

Answer:

the top one is called a open dot, they are similar because they are facing the same direction, they are different because the top is a open dot and the bottom is a closed dot

Step-by-step explanation:

You might be interested in

Find the area of the figure below.

kiruha [24]

Answer:

157.08 in2

Step-by-step explanation:

hope it helps

7 0

3 years ago

The accompanying data represent the daily (for example, Monday to Tuesday) movement of Johnson & Johnson (JNJ) stock for

egoroff_w [7]

Supposing that the stock increases in 37 days, the 95% confidence interval for the proportion of days JMJ stock increases is: (0.484, 0.7292)

The lower bound is of 0.484.
The upper bound is of 0.7292.

The interpretation is that we are 95% sure that the true proportion of all days in which the JMJ stock increases is between 0.484 and 0.7292.

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

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

In which

z is the z-score that has a p-value of $\frac{1+\alpha}{2}$ .

Supposing that it increases on 37 out of 61 days:

$n = 61, \pi = \frac{37}{61} = 0.6066$

95% confidence level

So $\alpha = 0.95$ , z is the value of Z that has a p-value of $\frac{1+0.95}{2} = 0.975$ , so $z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6066 - 1.96\sqrt{\frac{0.6066(0.3934)}{61}} = 0.484$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6066 + 1.96\sqrt{\frac{0.6066(0.3934)}{61}} = 0.7292$

The 95% confidence interval for the proportion of days JMJ stock increases is (0.484, 0.7292), in which 0.484 is the lower bound and 0.7292 is the upper bound.

The interpretation is that we are 95% sure that the true proportion of all days in which the JMJ stock increases is between 0.484 and 0.7292.

A similar problem is given at brainly.com/question/16807970

4 0

2 years ago

-3 (v + 4) = 2v - 37

asambeis [7]

Step-by-step explanation:

-3 (v + 4) = 2v - 37

-3v - 12 = 2v - 37

5v = 25

v = 5

3 0