1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sedbober [7]
3 years ago
8

Which ordered pair describes the location of the point shown on the

Mathematics
1 answer:
KengaRu [80]3 years ago
4 0

Your answer is A!

Step-by-step explanation:

Your answer is A!

You might be interested in
Simplify (−3c3w5)3<br> ..................................
ivanzaharov [21]

Answer:

= −9 c 3w 5

≡≡≡≡≡≡≡≡≡≡≡≡≡

5 0
3 years ago
What equation represents the graph below?​
gtnhenbr [62]

f(x) =  -  3{x}^{2}

5 0
3 years ago
Use the properties of exponents to enter an equivalent expression with a single exponent.
Gelneren [198K]

({10}^{2} ) {}^{4}  =  {10}^{2 \times 4}  =  {10}^{8}

I hope this can help you ^_^

5 0
3 years ago
A Pew Internet poll asked cell phone owners about how they used their cell phones. One question asked whether or not during the
EastWind [94]

Answer:

a) \hat p=\frac{471}{1024}=0.460

The standard error is given by:

SE= \sqrt{\frac{\hat p(1-\hat p)}{n}}=\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0156

And the margin of error is given by:

ME=z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}=1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0305

b) The 99% confidence interval would be given by (0.429;0.491)

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

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 population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Data given and notation  

n=1024 represent the random sample taken    

X=471 represent the people responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering

\hat p=\frac{471}{1024}=0.460 estimated proportion of people responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering    

p= population proportion of people responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering

Part a

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=1.96

The standard error is given by:

SE= \sqrt{\frac{\hat p(1-\hat p)}{n}}=\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0156

And the margin of error is given by:

ME=z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}=1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.0305

Part b

If we replace the values obtained we got:

0.460-1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.429

0.460+1.96\sqrt{\frac{0.460(1-0.460)}{1024}}=0.491

The 99% confidence interval would be given by (0.429;0.491)

8 0
2 years ago
The proportion of American births that result in a birth defect is approximately 1/33 according to the Centers for Disease Contr
max2010maxim [7]

Answer:

The appropriate probability model for X is a Binomial distribution,

X \sim Bin (<em>n</em> = 5, <em>p</em> = 1/33).

Step-by-step explanation:

The random variable <em>X</em> can be defined as the number of American births resulting in a defect.

The proportion of American births that result in a birth defect is approximately <em>p</em> = 1/33.

A random sample of <em>n</em> = 5 American births are selected.

It is assumed that the births are independent, i.e. a birth can be defective or not is independent of the other births.

In this experiment the success is defined as a defective birth.

The random variable <em>X</em> satisfies all criteria of a Binomial distribution.

The criteria are:

  • Number of observations is constant
  • Independent trials
  • Each trial has only two outcomes: Success and Failure
  • Same probability of success for each trial

Thus, the appropriate probability model for X is a Binomial distribution, Bin (<em>n</em> = 5, <em>p</em> = 1/33).

7 0
3 years ago
Read 2 more answers
Other questions:
  • Erin is renting chairs and a tent for a party. She can rent from A-1 Rental or Tonka Tents. A-1 Rental charges $1.33 per chair,
    9·1 answer
  • A farm has 28 chickens, 12 cows and 6 horses. What is the ratio of horses to total animals? Write your answer as a simplified ra
    10·2 answers
  • What is the order of rotational symmetry of a kite?<br> A) 0 <br> B) 1 <br> C) 2 <br> D) 4
    12·2 answers
  • What is the factored form of 8x^24 - 27y^6
    14·1 answer
  • Can someone please help me?
    7·1 answer
  • Answers for the 3 boxes please ​
    6·2 answers
  • A bakery used 40% more butter this month than last month. If the bakery used 240 kilograms of butter last month, how much did it
    7·1 answer
  • Helpppppppppp plssssssssss
    9·1 answer
  • The circle below has a center C and its radius is 3 yd
    14·1 answer
  • Janet is 33.3% finished with
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!