2 years ago

STATS. How can we decide if an event that seems weird is actually unusual or fairly likely?

Mathematics

1 answer:

lukranit [14]2 years ago

7 0

Answer:

Try finding the theoretical probability of a sample space before calling the event in the sample space "weird"

Step-by-step explanation:

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What is the length and width of a room that is 60 square meters and has a perimeter of 32 meters

AleksAgata [21]

L = lenght
W = width

$L * W = 60 \\
2L + 2W=32\\\\
L = \frac{32-2W}{2}\\
\frac{32-2W}{2}*W = 60\\
(16-W)*W = 60\\
-W^{2} + 16W -60 = 0\\\\

d = 16^{2} - 4*1*60 = 256 - 240 = 16 \\\\
W1 = \frac{-16+\sqrt{16}}{-2} = \frac{-12}{-2} = 6\\
W2 = \frac{-16-\sqrt{16}}{-2} = \frac{-20}{-2} = 10\\

L1 = 10\\
L2 = 6\\
$

so

{L,W} = {6,10} or {10,6}

but L > W so

L = 10
W = 6

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3 years ago

Find the common ratio of the geometric sequence 13,39,117

Anna [14]

r = 39/13 = 3

check

117 /39 = 3

true

so r=3

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3 years ago

Exam: 05.03 Exponential and Logarithmic Functions Mid-Module Check<br><br><br> Solve 4x = 8x − 1

Fantom [35]

If 4x = 8x - 1 then 4x must be equivalent to 1. So that means x is .25 or 1/4.

Hope this helps!
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2 years ago

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What is 1/9 - 2 4/9 - 5/9

Ymorist [56]

1/9-22/9-5/9
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2 years ago

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What number divided by 8 equals 2

KIM [24]

8 * 2 = 16

16 / 8 = 2

your answer is 16

Hope I helped!

Let me know if you need anything else!

~ Zoe