Two fair coins are flipped. Given that at least one coin lands on a head, calculate the probability of one head and one tail. Write your answer as a fraction in its simplest form.

Using the concept of probability, it is found that there is a probability of one head and one tail.

A probability is the number of desired outcomes divided by the number of total outcomes.

When two coins are flipped, there are 4 possible outcomes, which are: {HH, HT, TH, TT}.

Of those outcomes:

Hence, the probability is:

probability of one head and one tail.

A similar problem is given at link

The probability of one head and one tail is 2/3.

Step-by-step explanation:

To calculate the probability of one head and one tail,

Probability = required events / Total events

Probability = 2/3

answer is:

1.75 pounds

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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