All categories

3 years ago

Which expression is equivalent to 4/9 × 7

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

5 0

2 is the correct answer

You might be interested in

Whenever there are _____________ in a set of data, the mean is not a good way to describe the data.

Lady bird [3.3K]

The answer is outliers because when you have a larger or smaller set than your sequence suggests the mean will move toward the outlier

3 0

3 years ago

Read 2 more answers

Harold cut 18 1/2 inches off a rope that was 60 inches long.

Anton [14]

Answer:

41.5?

Step-by-step explanation:

is that it to the question or is there more?!?!

8 0

2 years ago

Read 2 more answers

The mean cost of a five pound bag of shrimp is 40 dollars with a standard deviation of 7 dollars. If a sample of 51 bags of shri

eimsori [14]

Answer:

$P(|\bar{x}-40| > 0.6)=0.5404$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 40 dollars

Standard Deviation, σ = 7 dollars

Sample size,n = 51

We are given that the distribution of cost of shrimp is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{7}{\sqrt{51}} = 0.9801$

P(sample mean would differ by true mean by more than 0.6)

$P(|\bar{x}-40| > 0.6)\\\Rightarrow = 1-P(39.4$

$P(39.4 \leq x \leq 40.6) \\\\= P(\displaystyle\frac{39.4 - 40}{0.9801} \leq z \leq \displaystyle\frac{40.6-40}{0.9801})\\\\ = P(-0.6121 \leq z \leq 0.6121)\\= P(z \leq 0.6121) - P(z < -0.6121)\\= 0.7298 - 0.2702 =0.4596$

$P(|\bar{x}|-40 > 0.6)\\= 1-0.4596=0.5404$

0.5404 is the required probability.

4 0

3 years ago

Polygon ABCDE is the result of a reflection of polygon LMNOP over the line. Which line segment in the image corresponds to MN⎯⎯⎯

Naddik [55]

The answer is segment BC :)

6 0

3 years ago

Read 2 more answers

√-8 . √-32 show work

Lelechka [254]

Answer:

-16

Step-by-step explanation:

8 0

2 years ago