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
Jlenok [28]
2 years ago
14

Decompose 549 two ways​

Mathematics
1 answer:
RUDIKE [14]2 years ago
4 0

Answer:

not sure if this is what you mean but you could do 500+49 or 510+39

You might be interested in
Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology ex
Nataly [62]

Answer:

(0.582-0.485) - 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.0942  

(0.582-0.485) + 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.09978  

And the 90% confidence interval would be given (0.0942;0.09978).  

We are confident at 90% that the difference between the two proportions is between 0.0942 \leq p_A -p_B \leq 0.09978

Step-by-step explanation:

Previous concepts

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".  

p_A represent the real population proportion female for Biology

\hat p_A =\frac{84199}{144796}=0.582 represent the estimated proportion female for biology

n_A=144796 is the sample size for A

p_B represent the real population proportion female for calculus AB

\hat p_B =\frac{102598}{211693}=0.485 represent the estimated proportion female for Calculus AB

n_B=211693 is the sample size required for B

z represent the critical value for the margin of error  

The population proportion have the following distribution  

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})  

The confidence interval for the difference of two proportions would be given by this formula  

(\hat p_A -\hat p_B) \pm z_{\alpha/2} \sqrt{\frac{\hat p_A(1-\hat p_A)}{n_A} +\frac{\hat p_B (1-\hat p_B)}{n_B}}  

For the 90% confidence interval the value of \alpha=1-0.90=0.1 and \alpha/2=0.05, with that value we can find the quantile required for the interval in the normal standard distribution.  

z_{\alpha/2}=1.64  

And replacing into the confidence interval formula we got:  

(0.582-0.485) - 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.0942  

(0.582-0.485) + 1.64 \sqrt{\frac{0.582(1-0.582)}{144796} +\frac{0.485(1-0.485)}{211693}}=0.09978  

And the 90% confidence interval would be given (0.0942;0.09978).  

We are confident at 90% that the difference between the two proportions is between 0.0942 \leq p_A -p_B \leq 0.09978

5 0
3 years ago
Valero had 3 pages of stickers. Each page had 30 stickers. She gave one sticker to each of the 18 students in her class. How man
Margarita [4]
72 stickers if there are 90 in total subtract 18 and boom 72
8 0
3 years ago
Read 2 more answers
How do I do lesson 12 grade 6 problem set
myrzilka [38]
Umm.. I have to see the problems, we might not have the same textbooks so
8 0
3 years ago
Read 2 more answers
6.52 or 6.520 which is greater
tatyana61 [14]
6.52 is equal to 6.520
3 0
3 years ago
Read 2 more answers
Someone give me the answer
Mademuasel [1]

We want to begin with nine, which gives us as follows:

9

Then, we want to subtract:

9 -

And we are subtracting x:

9 - x

The expression is 9 - x for the steps in the image given.

Hope this helps!! :)

5 0
3 years ago
Other questions:
  • Subtract. (−9.6x+7)−(7.3x−9) Enter your answer, in simplified form, in the box.Can somebody help me with this equation?
    6·2 answers
  • What is 0.1 as a fration and simple form if can be
    15·2 answers
  • Find the value of this expression if x=4 x^2-4/x-8
    6·1 answer
  • Write an equation of the line with slope 2/3 that goes through the point -2,5
    15·1 answer
  • Jupiter explorers has $7,200 in sales. the profit margin is 4 percent. there are 6,000 shares of stock outstanding. the market p
    8·1 answer
  • 1.21 liters = centiliters​
    14·1 answer
  • What is the domain of the graphed function?
    13·1 answer
  • Question is in the photo
    14·2 answers
  • PLEASE ANSWER THE QUESTION
    13·1 answer
  • Is the relation a function? Explain your reasoning. <br><br><br> Plz help will give brainliest
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!