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3 years ago

What would the value of 0 represent in her data?

Mathematics

2 answers:

ozzi3 years ago

6 0

Answer:My family hates me

Step-by-step explanation:

Sliva [168]3 years ago

6 0

a) Answer:

Shipping cost of 3.2 package is $4.13.

We can't use the cost assigned to 3

lbs because the package is over 3 lbs but it is not over 4 lbs so we use the

cost of 4lbs. (check the attachment for price)

b)Answer:

Line graph is needed to represent

the Media Mail shipping prices as a function of the weight of the books

shipped.

In line graph, x values represent the

weight in pounds and the y values represent the cost.

c) Answer;

When we graph the Media Mail shipping

prices as a function of the weight of the books shipped, it will be;

f(x) = 2.69 + 0.48(x-1)

d) Answer:

domain

is the x values; range is the y values

We can

define the domain of a function

f(x) as the set of all values for which the function is defined, and the range of the

function refers to the set of all values that f takes.

Given that;

x =

number of books purchased

f(x) =

price of shipping one order of books

fixed

fee = 3 per order

variable

fee: 1.99 per book

thus

the function will be;

f(x) =

3 + 1.99x

Assuming

the x =

f(0) =

3 + 1.99(0)

f(0) =

3 + 0

f(0) = 3

check the attachment. Graph part 1 f

g) The graph is

continuous because the x-values can have any input as a point.

That graph is a continuous, means it is like

unbroken line. Therefore we want to say that f(x) is a continuous function. But

a function is a relationship between numbers.

Part 2;

Area =

8,100 square feet

area of

a square = a²

8,100

square feet = a²

√8,100

square feet = √a²

90 feet

= a

total

length each row of bookshelf is 4/5 of the length of the storage space.

90 feet

* 4/5 = (90*4)/5 = 360/5 = 72 feet.

Area =

(72 ft)²

Area =

5,184 square feet.

Part 3

a) check the attachment

b)check the attachment

Part 4:

let x represent the amount of a transaction

and f(x) represent the amount Isabel is charged for the transaction

then;

f(x) = 1.5(x)

c) The domain and range are both negative infinity to positive infinity.

We can define the domain of a function f(x) as the set of all values for which the function is defined, and the range of the function refers to the set of all values that f takes

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Step-by-step explanation:

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Consider a value to be significantly low if its z score less than or equal to minus−2 or consider a value to be significantly hi

ziro4ka [17]

Answer:

If the weight is higher than 5.8886 gr would be considered significantly high

If the weight is lower than 5.6121 gr would be considered significantly low

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 Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

$X \sim N(5.75241,0.06281)$

Where $\mu=5.75241$ and $\sigma=0.06281$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

For the case when z =-2 we can do this:

$-2 = \frac{X-5.75241}{0.06281}$

And if we solve for X we got:

$X = 5.75241 -2*0.06281 =5.6121$

And for the other case when Z=2 we have:

$2 = \frac{X-5.75241}{0.06281}$

And if we solve for X we got:

$X = 5.75241 +2*0.06281 =5.8886$

If the weight is higher than 5.8886 gr would be considered significantly high

If the weight is lower than 5.6121 gr would be considered significantly low

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3 years ago

A rental car company has noticed that the distribution of the number of miles customers put on rental cars per day is skewed to

kodGreya [7K]

Using the Central Limit Theorem, the correct option is:

--------------------------

The Central Limit Theorem states that, for a normally distributed variable X, with mean $\mu$ and standard deviation $\sigma$ , the sample means of size m are approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

The interpretation related to this problem is that the larger the sample size, the smaller the standard deviation.
Thus, among the options, the largest sample is 25, thus, option c will have the smallest standard deviation.

A similar problem is given at brainly.com/question/23088374

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2 years ago