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djverab [1.8K]
3 years ago
12

What is the probability of tossing one coin for two 'tails' in a row?

Mathematics
2 answers:
tatiyna3 years ago
8 0
The probability of tossing two tails in a row is 1/2 possibility tossing tails the first time, then another 1/2 possibility of tossing tails again, so from the start, we would multiply 1/2 and 1/2 to get a 1/4 possibility of tossing two tails in a row.

Hope this helps and have a nice day:)
Tasya [4]3 years ago
4 0
Assuming the coin is fair, probability of getting one tail is 50%, probability of getting two tails in a row is 50%*50% = 25% or 1/4
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If you have a bag of 4 red and 6 blue marbles, the probability of picking a red, putting it back,then picking a blue.
Afina-wow [57]

Answer:

well theres a four in ten chance that you'll draw a red one then there's a six in ten chance of drawing a blue

Step-by-step explanation:

5 0
3 years ago
Mathematical word describes both 27x and 6x in the expression 27x+6x?
Maslowich

The mathematical word describing  both 27x and 6x in the expression 27x+6x is "<u><em>addition</em></u>"

<h3>How to form mathematical expression from the given description?</h3>

You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4. If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions.

For the given case, the terms were 27x and 6x and the expression formed from them is 27x+6x

This means both the terms were added together, as denoted by '+' (called 'plus') sign.

When two terms are written with 'plus' sign in between, then that means they're added to each other and the result will be addition of both of their's values.

Thus, the mathematical word describing  both 27x and 6x in the expression 27x+6x is <u><em>addition</em></u>"

Learn more about addition here:

brainly.com/question/14148883

7 0
2 years ago
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UkoKoshka [18]
Exponential. A is the answer
7 0
3 years ago
20% of what original number is 25?
marshall27 [118]

Answer:

Y is 25, P% is 20, so the equation is 25/20% = X Convert the percentage to a decimal by dividing by 100. Converting 20% to a decimal: 20/100 = 0.20

Step-by-step explanation:

3 0
2 years ago
You successfully completed statistics, and the Math Department Chair recruited you to be a tutor. It’s day one on the job, and y
zvonat [6]

Answer:

Step-by-step explanation:

Ok, so we have to help your pupil (lets call her Jane) figure out "why researchers should use a random sample to conduct a survey". So, i will list all of the choices.

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  • Random sampling will provide a more representative sample of population
  • Researchers can use a random sample to draw conclusions about the population

Random sampling is used to get the best average, and not favor any one opinion. For example, if you were trying to figure out the daily spending budget of people, you wouldn't just go to the upper clas part with all the rich people, you would survey from all over the town to get results from all kinds of people. So, the answers are:

  • A random sample is likely to avoid bias (because thats exactly what they do)
  • Random sampling will provide a more representative sample of population (because they are designed to do that)
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Hope this helps

4 0
3 years ago
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