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FinnZ [79.3K]
2 years ago
10

it took melanie 1/3 of an hour to ride her bike 2 3/4 of a mile how many miles per hour can melanie ride her bike

Mathematics
1 answer:
irinina [24]2 years ago
7 0
(11/4) miles=(1/3) hours

Times both sides by 3 to eliminate the 1/3 (to get 1)

(11/4)*3=
33/4

8 1/4 miles per hour.
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(10 - 6i)/(2 + 8i) =?
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Please help me! I will give you Brainlist if you get it right!​
tatuchka [14]

Answer:

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Step-by-step explanation:

Find the area of the circle with r = 36/2     Area1 =  π r²

divide Area1 by two since the upper part of the figure is a semi-circle

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A simple random sample of n measurements from a population is a subset of the population selected in a manner such that which of
Ierofanga [76]

Answer:

a) sample of size n from the population has an equal chance of being selected.

b) Every member of the population has an equal chance of being included in the sample.                                            

Step-by-step explanation:

Simple random sampling:

  • It is a type of probabilistic sampling.
  • It is an unbiased representation of population.
  • The probability of selection is equal for every observation.
  • A sample is taken in such a way that each member has an equal probability of being selected.
  • A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.
  • Thus,the correct interpretation is given by,

a) sample of size n from the population has an equal chance of being selected.

b) Every member of the population has an equal chance of being included in the sample.

  • c) The simplest method of selection is used to create a representative sample.

The statement is false.

There is no pattern or technique used for selection. The selection is purely random.

  • d) Each subset of the population has an equal chance of being included in the sample.

The statement is false.

Each object of the population has an equal chance of being included in the sample. and not each subset.

  • e) Every sample of size n from the population has a proportionally weighted chance of being selected.

The given statement is false.

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mark brainliest please it would help alot

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Morgan is playing a board game that requires three standard dice to be thrown at one time. Each die has six sides, with one of t
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The probability of having a 17 is the number of ways of having 17 divided by the number of different possible outcomes.

Ways of having 17:

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6            6            5          6+6+5 = 17
6            5            6          6+5+6 = 17
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Those are the only 3 possibilities of having 17 (you can only loose 1 point).

The total number of outcomes are 6*6*6 = 216

So the chances (probability) to win is 3 / 216 = 1/72 = 0.0139 
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