Break apart and distribute to solve 72÷8

For which distributions is the median the best measure of center?

sleet_krkn [62]

Answer:

D

Step-by-step explanation:

It is the organized one with the center bar also being the largest value.

7 0

3 years ago

Can someone please figure this out for me because I don't understand it.

lisabon 2012 [21]

The answer would be 'b'
Now, here Luke walks total 2¼ miles but his friend's home is ¼ mile. So, number of trips he makes = Total miles walked ÷ Distance to his friend's home
= 2¼ ÷ ¼ = 9

8 0

3 years ago

Solve each system of equations by showing the process of substitution.

bekas [8.4K]

Answer:

A. {x,y}={-2,-3}

// Solve equation [2] for the variable x

[2] x = 2y + 4

// Plug this in for variable x in equation [1]

[1] (2y+4) - y = 1

[1] y = -3

// Solve equation [1] for the variable y

[1] y = - 3

// By now we know this much :

x = 2y+4

y = -3

// Use the y value to solve for x

x = 2(-3)+4 = -2

B. [1] 3x=3y-6

[2] y=x+2

Equations Simplified or Rearranged :

[1] 3x - 3y = -6

[2] -x + y = 2

Solve by Substitution :

// Solve equation [2] for the variable y

[2] y = x + 2

// Plug this in for variable y in equation [1]

[1] 3x - 3•(x +2) = -6

[1] 0 = 0 => Infinitely many solutions

C.Step by Step Solution

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System of Linear Equations entered :

[1] 4x - y = 2

[2] 8x - 2y = 4

Solve by Substitution :

// Solve equation [1] for the variable y

[1] y = 4x - 2

// Plug this in for variable y in equation [2]

[2] 8x - 2•(4x-2) = 4

[2] 0 = 0 => Infinitely many solutions

3 0

2 years ago

Read 2 more answers

Suppose a large shipment of compact discs contained 19% defectives. If a sample of size 343 is selected, what is the probability

Yuri [45]

Answer:

The value is $P( | \^p - p | < 0.04) = 0.9408$

Step-by-step explanation:

From the question we are told that

The population proportion is $p = 0.19$

The sample size is n = 343

Generally given that the ample size is large enough , i.e n > 30 then the mean of this sampling distribution is mathematically represent

$\mu_{x} = p = 0.19$

Generally the standard deviation is mathematically represented as

$\sigma =\sqrt{\frac{p(1- p)}{n} }$

=> $\sigma =\sqrt{\frac{0.19 (1- 0.19 )}{343 } }$

=> $\sigma = 0.0212$

Generally the the probability that the sample proportion will differ from the population proportion by less than 4% is mathematically represented as

$P( | \^p - p | < 0.04) = P( \frac{|\^ p - p |}{ \sigma_p } < \frac{0.04}{0.0212 } )$

$\frac{|\^ p - p |}{\sigma } = |Z| (The \ standardized \ value\ of \ |\^ p - p | )$

$P( | \^p - p | < 0.04) = P( |Z| < 1.887 )$

=> $P( | \^p - p | < 0.04) = P( Z < 1.887 )- P( Z < -1.887 )$

From the z table the area under the normal curve to the left corresponding to 1.887 and - 1.887 is

$P( Z < 1.887 )= 0.97042$

and

$P( Z < -1.887 )= 0.02958$

So

$P( | \^p - p | < 0.04) = 0.97042 - 0.02958$

=> $P( | \^p - p | < 0.04) = 0.9408$

3 0

3 years ago

A survey determined that 5/18 of the seventh grade students at Mills Middle School preferred round chocolate candies to hard can

Fudgin [204]

Answer:

The correct answer is B) 1/9

Step-by-step explanation:

In order to find this answer, you need to take the fraction that answered it on the first try and subtract the number that changed their mind.

5/18 - 1/6

In order to complete this operation, you need to give them common denominators.

5/18 - 3/18 = 2/18

And we can simplify that answer.

2/18 = 1/9

4 0

3 years ago