3 years ago

A good sample is all of the following except _____. random biased representative

Mathematics

1 answer:

svetoff [14.1K]3 years ago

6 0

Biased samples will not be representative of a group. The answer is biased.

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3 years ago

A ball is launched into the sky at 54. 4 ft./s from a 268.8 m tall building. The equation for the ball’s height, h, at time t se

Crank

Answer:

t = 21

Step-by-step explanation:

The ball strikes the groujd when h = 0.

$-3.2t^2 + 54.4t+268.8=0 \\ \\ 32t^2 - 544t-2688=0 \\ \\ t^2 - 17t-84=0 \\ \\ (t-21)(t+4)=0 \\ \\ t=-4, 21$

Since time must be positive, t = 21.

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2 years ago

Sam scored 20% of the teams 20 points. How many points did sam score

Irina18 [472]

20% = 1/5

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Sam scored 4 points

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4 years ago

Read 2 more answers

How do I solve this?

bulgar [2K]

Answer:

I think you should try the method of substitution???

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3 years ago