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
Varvara68 [4.7K]
3 years ago
10

A teacher chooses four students of a class of 36 to

Mathematics
1 answer:
levacccp [35]3 years ago
6 0

Answer:

9 groups

Step-by-step explanation:

You might be interested in
How do you estimate an area?
adell [148]
You calculate an answer by multiplying each side by each other. hope this helps.
4 0
3 years ago
Read 2 more answers
I NEED HELP PLEASE If given the following Graph; Andre earns $4000 a month at his new job. In order to track his spending and sa
melisa1 [442]

Answer:

You would need to multiply 0.33 and 4,000 to find the rent.

Step-by-step explanation:

hope this helps:)

5 0
2 years ago
According to a​ study, 68​% of all males between the ages of 18 and 24 live at home. ​ (Unmarried college students living in a d
Marat540 [252]

Answer:

a) P(X≥143​)=0

b) This contradicts the study as getting a sample with this proportion is almost impossible (if the proportion of 68% is true).

Step-by-step explanation:

If we use the normal approximation to the binomial distribution we have the following parameters (mean and standard deviation):

\mu=np=0.68*206=140.1\\\\ \sigma=\sqrt{np(1-p)}=\sqrt{206*0.68*0.32}=\sqrt{44.8256}=6.7

Then, we can calculate the probability of X being equal or more than 143 using the z-score:

z=\dfrac{X-\mu}{\sigma/\sqrt{n}}=\dfrac{143-140.1}{6.7/\sqrt{206}}=\dfrac{2.9}{0.4668}=6.2124\\\\\\P(x\geq143)=P(z>6.2124)=0

This contradicts the study as getting a sample with this proportion is almost impossible (if the proportion of 68% is true).

6 0
3 years ago
Someone please help me I’ll give out brainliest please dont answer if you don’t know
Elden [556K]

Answer:

48

Step-by-step explanation:

4x12=48

5 0
3 years ago
Of 585 samples of seafood purchased from various kinds of food stores in different regions of a country and genetically compared
Dafna1 [17]

Answer:

a) The 99% confidence interval is from 14.8% to 23.2%.

b) The confidence interval tells us that the true proportion of mislabeled is within 14.8% and 23.2%, with a 99% confidence. In other words, if we take samples of the same size, 99% of the samples will have a proportion within 0.148 and 0.232.

c) The confidence interval calculation take into account the sample size, so the width (or precision) of the interval depends on the sample size.

The only criticism that could be analyzed is to see if the sample is representative of the population.

Step-by-step explanation:

a) We have to calculate a 99% confidence interval for the proportion.

The sample proportion is p=0.19.

 

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.19*0.81}{585}}\\\\\\ \sigma_p=\sqrt{0.000263}=0.016

The critical z-value for a 99% confidence interval is z=2.576.

The margin of error (MOE) can be calculated as:

MOE=z\cdot \sigma_p=2.576 \cdot 0.02=0.042

Then, the lower and upper bounds of the confidence interval are:

LL=p-z \cdot \sigma_p = 0.19-0.042=0.148\\\\UL=p+z \cdot \sigma_p = 0.19+0.042=0.232

The 99% confidence interval for the population proportion is (0.148, 0.232).

5 0
3 years ago
Other questions:
  • Given the point (5, 6) and the slope of 5, find y when x = 21.
    5·1 answer
  • I need to know the answer and how to solve the question for #9 please
    7·1 answer
  • Two rectangles have the same width. One is 12 units long and the other is 8 units long. The area of the first rectangle is 320 s
    10·1 answer
  • Is the following relation a function?<br><br><br> Yes<br><br> No
    5·2 answers
  • Anyone? Can help !!!
    11·1 answer
  • 702•3.19 please give me the answer and the steps for it. thanks
    7·1 answer
  • What is the name of a figure made of 6 congruent squares
    10·1 answer
  • Forty-three is 7 less than twice a number. What is the<br>number?​
    11·2 answers
  • Fill in the blank please
    5·1 answer
  • Does (1,-2) (2,1) (3,0) (4,2) represent a function Yes or No?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!