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Sunny_sXe [5.5K]
3 years ago
6

"Flip a coin; if it is heads, pick item A; if it is tails, flip the coin again; this time, if it is heads, choose B; if it is ta

ils, choose C. Explain why this is a probability sample but not a simple random sample"
Mathematics
1 answer:
DENIUS [597]3 years ago
3 0

Answer:

It is a probability sample because it utilizes some form of random selection. It is not a simple random sample because there is not an equal possibility of A, B, or C.

Step-by-step explanation:

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What is the equation of the line, in slope-intercept form, that passes through (3, -1) and (-1, 5)?
Valentin [98]

Answer: a) y = - 3/2 x + 7/2

Step-by-step explanation:

The equation of a straight line can be represented in the slope-intercept form, y = mx + c

Where c = y intercept

m represents the slope of the line.

m = (y2 - y1)/(x2 - x1)

y2 = final value of y

y 1 = initial value of y

x2 = final value of x

x1 = initial value of x

The line passes through (3, - 1) and (- 1, 5),

y2 = 5

y1 = -1

x2 = - 1

x1 = 3

Slope,m = (5 - - 1)/(- 1 - 3) = 6/- 4 =

- 3/2

To determine the y intercept, we would substitute x = 3, y = - 1 and m= - 3/2 into y = mx + c. It becomes

- 1 = - 3/2 × 3 + c

- 1 = - 9/2 + c

c = - 1 + 9/2

c = 7/2

The equation becomes

y = - 3x/2 + 7/2

4 0
3 years ago
Read 2 more answers
Which property says if m= -2 then 8m = -16
Veseljchak [2.6K]

Answer:

I believe it's Division property

Step-by-step explanation:

Since 8m = -16

You divide both sides by 8. So -16 divided by 8 will equal to -2. m=-2

Hope this helpsʕ•ᴥ•ʔ

3 0
3 years ago
A digital scale measures weight to the nearest 0.2 pound. Which measurements shows an appropriate level for the scale ?
Ilia_Sergeevich [38]

Answer: Answer choices 1, 3, 4

Step-by-step explanation:

As long as it ends in .0, .2, .4, .6, or .8 it's fine. Therefore the first and last 2 work, since 0.2 can end in either of those 5 values.

Hope that helped,

-sirswagger21

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Dmitrij [34]
The consecutive integers are i, i+1, i+2, i+3.

3 less than sum of the integers

= i + i +1 + i + 2 + i + 3 - 3 = 4i + 3
5 0
3 years ago
The slope of a line parallel to<br> -x + y = 12 equals what?
Viktor [21]
1. parallel lines have same slope
7 0
3 years ago
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