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solong [7]
3 years ago
5

A coin has heads on one side and tails on the other. The coin is tossed 12 times and lands

Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:

D, the observed frequency of landing heads up gets closer to the expected frequency based on the probability of the coin landing heads up.

Step-by-step explanation:

As of now, the observed frequency states that the coin will land on heads 4/12 times. The expected frequency states that the coin will land on heads 50% of the time, or 6/12 times. As the number of trials increases, the observed frequency will get closer to the expected frequency.

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Help me find the answer plss​
Olin [163]

Answer:

about 8.2 cm

Step-by-step explanation:

The key is to realize that the volume never changes.
The formula for the volume of a sphere is (4/3)*pi*radius^3
22/7 is being substituted in place of pi in this problem
The volume of one of the small spheres is
(4/3)*(22/7)*2^3 is about 33.524 cm^3
64 of those spheres would have a volume of 33.524*64, or about 2145 cm^3
Now, the problem is to find a sphere with a volume of 2145 cm^3
Volume = (4/3)*(22/7)*radius^3
plug in and solve
2145 = 4.1905*r^3
r^3=511.87
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5 0
2 years ago
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Answer:

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What is the absolute value of the complex number -4-√2
Zepler [3.9K]
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|-4-√2 i| = √[ (-4)² + (<span>-√2)² ]
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