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Alexandra [31]
2 years ago
13

Let's suppose someone flips a fair coin three times. 1. How many outcomes are possible? [a] 2. What is the probability of gettin

g exactly one tail? Give as a fraction [b] 3. What is the probability of getting at most two tails? Give asa fraction [c]​
Mathematics
1 answer:
andrey2020 [161]2 years ago
7 0

Probability helps us to know the chances of an event occurring. There are 8 outcomes.

<h3>What is Probability?</h3>

Probability helps us to know the chances of an event occurring.

\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}

Let's suppose someone flips a fair coin three times.

1. The outcomes of the coins are,

  • HHH
  • HHT
  • HTH
  • HTT
  • TTH
  • THT
  • TTH
  • TTT

Therefore, there are 8 outcomes.

2. The probability of getting exactly one tail is,

P(X=1) = 2/8 = 1/4

3. The probability of getting at most two tails is,

P(X≤2) = P(X=1) + P(X+2) = 1/4 + 1/2 = 3/4

Learn more about Probability:

brainly.com/question/795909

#SPJ1

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Where x represents the previous year's salary, its amount this year is said to be ...

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3 0
3 years ago
NEED HELP ASAP SOMEONE PLEASE!!!!
Alisiya [41]

Answer: The state with the second lowest population has the lowest population density.

Step-by-step explanation:

Since, Density = Population / Area

The population of state A = 1,055,173

Its area = 2677 square km

Thus, the density of state A = \frac{1055173}{2677} = 394.162495,

The population of state B = 1,333,089

Its area = 36,418 square km

Thus, the density of state B = \frac{1,333,089}{36,418} = 36.6052227,

The population of state C = 3,596,677

Its area = 5543 square km

Thus, the density of state C = \frac{3,596,677}{5543} = 648.868302,

The population of state D =6,745,408

Its area = 10555 square km

Thus, the density of state D = \frac{6,745,408}{10555} = 639.072288,

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The state in increasing order of the populations,

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Also, the state in increasing order of density,

State B < State A < State D < State C

⇒ Second option is correct.

3 0
3 years ago
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