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Vikentia [17]
3 years ago
10

The social studies teacher wants to know whether the students in the entire school prefer a model United Nations activity or a s

tudent government activity. The teacher draws a random sample from the following groups:
All teachers in the school
All boys in each grade
All students in each grade
All students in the social studies club
Which group best represents the population he should take a random sample from to get the best results for his survey?


All teachers in the school
All boys in each grade
All students in each grade
All students in the social studies club
Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
8 0

Answer:

All students in each grade.

Step-by-step explanation: This is the answer that givs the most variablity. Your welx if its correct :)

dedylja [7]3 years ago
3 0
That would be number 3 on the list; All students in each grade
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K is equal to l<br> m is equal to n<br> as the angles are marked, what's x and y
Greeley [361]
X - y + x + y = 180
2x = 180
  x = 90
2x - 2y = x + y
  x = 3y
  y = x/3
  y = 90/3
  y = 30

x - y = 90 - 30 = 60
x + y = 90 + 30 = 120
2x - 2y = 180 - 60 = 120

3 0
3 years ago
I need help thanks.
melomori [17]
If this shape is trapezium
m (<D) = m (<C)
since AB parallel to CD
m (<C) + m (<A) = 180°
m (<C) = 180 - 125 = 55°
m (<D) = 55°
mark me as brainlest, please
3 0
3 years ago
Giving 20 points for the answer.
solong [7]

Answer:

B, A, C

Step-by-step explanation:

add the like terms together (ending in x2 with x2, ending in x with x etc )

8 0
1 year ago
Read 2 more answers
"A sample of 30 randomly selected oranges was taken from a large population, and their diameters were measured. The mean diamete
Yuki888 [10]

Answer:

The lower bound of the interval is 88.9mm and the upper bound is 93.1mm.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.85}{2} = 0.075

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.075 = 0.925, so z = 1.44

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.44*\frac{8}{\sqrt{30}} = 2.1

The lower end of the interval is the sample mean subtracted by M. So it is 91 - 2.1 = 88.9mm.

The upper end of the interval is the sample mean added to M. So it is 91 + 2.1 = 93.1 mm

The lower bound of the interval is 88.9mm and the upper bound is 93.1mm.

6 0
2 years ago
Can someone help me with this problem please??
kifflom [539]

Answer:

Hi mate

I would advise you to make an account with the location given as india

They are helpful as hell with such questions

Hope helps mate ❤️

3 0
3 years ago
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