I need help please, i need the answer now!

pls help me asap and fast and for every question, you have to explain to me how you got the answer the one who did all of the wi

shtirl [24]

Answer:

180-12-35

----------

30

= 133

----------

30

3×2×1

----------

2 × 2

=6/4

=3/2

6(2÷3/5)

=6(10/3)

=20

5 0

3 years ago

1. If u were to draw a tree diagram showing all the possible outcomes for rolling a six sided die twice, how many total outcomes

Furkat [3]

1. 2). 2. 1) 3 * 2 =6

8 0

3 years ago

Bones Brothers & Associates prepare individual tax returns. Over prior years, Bones Brothers have maintained careful records

madreJ [45]

Answer:

For this case we have the following info related to the time to prepare a return

$\mu =90 , \sigma =14$

And we select a sample size =49>30 and we are interested in determine the standard deviation for the sample mean. From the central limit theorem we know that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation would be:

$\sigma_{\bar X} =\frac{14}{\sqrt{49}}= 2$

And the best answer would be

b. 2 minutes

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Solution to the problem

For this case we have the following info related to the time to prepare a return

$\mu =90 , \sigma =14$

And we select a sample size =49>30 and we are interested in determine the standard deviation for the sample mean. From the central limit theorem we know that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation would be:

$\sigma_{\bar X} =\frac{14}{\sqrt{49}}= 2$

And the best answer would be

b. 2 minutes

3 0

3 years ago

Q/19 < 4<br><br> pls be correct if you type it !!!!

babymother [125]

Answer:

q<76

Step-by-step explanation:

hope this is the answer you were looking for!

3 0

3 years ago

Can someone help me .

insens350 [35]

Y-y1=m(x-x1)
m= slope =-3
y-y1=-3(x-x1),
y1=-7, x1=5
y--7=-3(x-5)
y+7=-3(x-5) this is C

7 0

3 years ago