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dem82 [27]
3 years ago
14

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.


e)

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


f)

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:


a)


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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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:

(c) Average number of miles put on a rental car per day across 25 customers.

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

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

5 0
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