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kompoz [17]
3 years ago
11

(02.01 LC)

Mathematics
1 answer:
horsena [70]3 years ago
4 0

Answer:

B. Number the students on the school roster. Use a table of random numbers to choose 160  students from this roster for the survey.

Step-by-step explanation:

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Exhibit 18-2 Students in statistics classes were asked whether they preferred a 10-minute break or to get out of class 10 minute
tankabanditka [31]

Answer:

The mean and the standard deviation of the sampling distribution of the number of students who preferred to get out early are 0.533 and 0.82

Step-by-step explanation:

According to the given data we have the following:

Total sample of students= 150

80 students preferred to get out 10 minutes early

Therefore, the mean of the sampling distribution of the number of students who preferred to get out early is = 80/150 = 0.533

Therefore,  standard deviation of the sampling distribution of the number of students who preferred to get out early= phat - p0/sqrt(p0(1-p)/)

= 0.533-0.5/sqrt(0.5*0.5/15))

= 0.816 = 0.82

3 0
3 years ago
Read 2 more answers
Open to find question (mathematics)
BigorU [14]

Answer:

its a ...............................

4 0
3 years ago
M in
klio [65]

Answer:

The copy machine makes 87.5 copies in one minute.

Step-by-step explanation:

Set up an equation to divide 4 into 350. This is because in order to know how many copies is being made in 1 minute, you need to determine the rate of copies per minute.

350 divided by 4 is 87.5.

3 0
3 years ago
Six<br> PRODUCT Identities involving the trigonometric ratios.
polet [3.4K]

Answer:

Defining relations for tangent, cotangent, secant, and cosecant in terms of sine and cosine

Step-by-step explanation:

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4 0
3 years ago
Marc is looking at the plans for his new garage. the length of the garage is 8 metres. the scale on the drawing is 1:50. what wi
evablogger [386]
The answer is 16 cm (or 0.16 m).

The scale is the ratio of the model to the real thing.
So, in the scale 1:50, the model is 1, while the real thing is 50.
Now, just make a proportion:
the model : the real thing = the model dimension : the real thing dimension
        1         :          50         =                   x                 :                    8m

From here:
x = 8m * 1 / 50 = 0.16 m = 0.16 * 100 cm = 16 cm.
4 0
3 years ago
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