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
anyanavicka [17]
3 years ago
14

How does the numbers of zeros in the product of 8 and 5000 compare to the number of zeros in the factors?

Mathematics
1 answer:
o-na [289]3 years ago
6 0
If product means to multiply than
5000*8= 40000
Answer: There is one more zero in the product.
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
Which point is a reflection of Z(5/1, 3) across the x-axis? Please I will give the brainliest
Simora [160]

Answer:  (5/1, -3)

Hope this helps :)

5 0
2 years ago
Read 2 more answers
Please help fast. <br> Answer the question below:
LenKa [72]
Either SSS or not possible

Mark if correct!
8 0
2 years ago
Work out <br>2 3/14 + 3 4/14 <br>Give your answer as a mixed number in its simplest form. ​
Gelneren [198K]
Answer :

It is 5 1/2
6 0
3 years ago
Read 2 more answers
I need an answer quick!!!!
Illusion [34]

Answer:

investment 2 $400 Simple Interest Rate

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • A right triangle has a 30 degree angle. the leg adjacent to the 30 degree angle measures 25 inches what is the inches. What is t
    13·1 answer
  • you answer 95% of the questions correctly on a 40 question test how many questions do you answer incorrectly?
    14·1 answer
  • What Is the best way to describe an inequality?
    15·1 answer
  • The depth of the water at the end of a pier changes periodically along with the movement of tides. On a particular day, low tide
    8·2 answers
  • How do you solve 4 x 2 = 5?
    12·1 answer
  • Based on past experience, a telemarketing firm has found that calls to prospective customers take an average of 2.0 minutes, wit
    15·1 answer
  • How do i find the negative exponent
    15·1 answer
  • A girl scout was selling boxes of cookies. In a month, she sold both boxes of chocolate chip cookies ($1.25 each) and boxes of p
    11·2 answers
  • The contents of a cell in a spreadsheet are shown below. 8.2111148E-5 What number do the contents of the cell represent? A. 8.21
    6·1 answer
  • Find the distance between the points A (13, 2) and B (7, 10).
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!