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Aleks [24]
2 years ago
10

Part C

Mathematics
2 answers:
Andrews [41]2 years ago
8 0

Answer:

The new histogram shows that 7 trucks have a fuel efficiency of 10 to 14 miles per gallon. It’s also possible to see that the shape of the data is skewed right.

Step-by-step explanation:  answer for plato

Elodia [21]2 years ago
3 0

Answer:

This is the sample answer:

The new histogram shows that 7 trucks have a fuel efficiency of 10 to 14 miles per gallon. It’s also possible to see that the shape of the data is skewed right.

Step-by-step explanation:

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According to a study conducted in one city, 39% of adults in the city have credit card debts of more than $2000. A simple random
Butoxors [25]

Answer:

The sampling distribution of the sample proportion of adults who have credit card debts of more than $2000 is approximately normally distributed with mean \mu = 0.39 and standard deviation s = 0.0488

Step-by-step explanation:

Central Limit Theorem

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

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

In this question:

p = 0.39, n = 100

Then

s = \sqrt{\frac{0.39*0.61}{100}} = 0.0488

By the Central Limit Theorem:

The sampling distribution of the sample proportion of adults who have credit card debts of more than $2000 is approximately normally distributed with mean \mu = 0.39 and standard deviation s = 0.0488

5 0
2 years ago
What is -3x+12y=24 in standard form
nalin [4]
So standard form is Ax+By=C
Since the problem is already in that form you don’t need to switch it around however A has to be more than 0 (so positive). Divide the equation by -3 to get the answer x-4y=-8

8 0
2 years ago
A diver jumps off a 20 foot high diving board with an initial upward velocity of 4 feet per second. Use the vertical motion mode
Pachacha [2.7K]

The height is represented by h = -16t² + 4t + 20 and There is only one solution, because the solutions indicate time and time cannot be negative.

<h3>How to solve vertical motion models?</h3>

We are given the vertical model of the diver's jump as;

h = -16t² + vt + s

where;

h is height

t is time

v is velocity

s is distance

A) We are given;

Distance; s = 20 ft

velocity; v = 4 ft/s

Thus;

h = -16t² + 4t + 20

B) The solution of the model is gotten from;

-16t² + 4t + 20 = 0

Solving this quadratic equation gives;

t = 1.25 seconds or -1 second

C) B. There is only one solution, because the solutions indicate time and time cannot be negative.

Read more about Vertical Motion Models at; brainly.com/question/27526920

#SPJ1

7 0
2 years ago
Someone help me with this question ​
zalisa [80]

Answer:

Step-by-step explanation:

a) Complete the table

                          Monday             Tuesday            Wednesday             Total

Female       21-14=7                 38-13-7= 18                 13                          38

Male              14                       33-18= 15                 26-13 =13            80-38=42

Total        80-33-26= 21                 33                          26                      80

b) P(the student is a female) = 38/80= 0.475

c) P(the student visited the library on Tuesday) = 33/80= 0.4125

7 0
3 years ago
Read 2 more answers
Find the value of <img src="https://tex.z-dn.net/?f=%246%2B%5Cfrac%7B1%7D%7B2%2B%5Cfrac%7B1%7D%7B6%2B%5Cfrac%7B1%7D%7B2%2B%5Cfra
Paul [167]

Let

x = 6 + \dfrac1{2 + \dfrac1{6 + \dfrac1{2 + \cdots}}}

Then

x = 6 + \dfrac1{2 + \dfrac1x}

and solving for x gives

x = 6 + \dfrac x{2x + 1}

x = \dfrac{13x + 6}{2x + 1}

x(2x+1) = 13x + 6

2x^2 + x = 13x + 6

2x^2 - 12x - 6 = 0

x^2 - 6x - 3 = 0

By the quadratic formula,

x = 3 \pm 2\sqrt{3}

but x must be a positive number, so only the positive square root solution is valid.

x = 3 + 2\sqrt{3}

We identify a = c = 3 and b = 2, so a + b + c = 8.

3 0
3 years ago
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