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3 years ago

10

In theoretical probability, what does it mean when the question asks ‘at least’, for example what is the probability of getting

at least a 2 when a six sided die is rolled?

1 answer:

klio [65]3 years ago

5 0

Answer:

Step-by-step explanation:

It means that you will a 2 or a 3 or a 4 or a 5 or 6.

All of these are permitted.

So the probability of getting at least a 2 is 5/6.

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just olya [345]

Answer:

Step-by-step explanation:

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x <= -15 [The point -15 is included, so it must be a solid dot]

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5x + 7 > -18

5x > -25

x > -5 [The point -5 is NOT included, so it should be an empty dot.]

Solution C seems the best.

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3 years ago

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2 years ago

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The midpoint of DG is M(-1,5). One endpoint is D(1,4). Find the

irina1246 [14]

Answer:

G(-3, 6)

Step-by-step explanation:

$midpoint = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} )$

Substitute the coordinates of M and D into the formula:

$( - 1,5) = ( \frac{x1 + 1}{2} , \frac{y1 + 4}{2} ) \\- 1=\frac{x1 + 1}{2}& ,&5&= \frac{y1 + 4}{2} & \\ - 1(2)= x1 + 1&, & 5(2) &= y1 + 4 &\\ - 2= x1 + 1&, &10 &= y1 + 4 &\\ x1= - 2 - 1&,& y1 &= 10 - 4 &\\ x1= - 3&, &y1& =6 \: \: \: \: \: \: \: \: \: \: &$

Thus, the coordinates of G is (-3,6).

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3 years ago