Lara tossed a fair coin 3 times. what is the probability of getting heads in the first two trials?

1 over 8

2 over 8

3 over 8

4 over 8

i tried 4/8 and i had gotten it wrong!

4/8 is equal to 1/2. While this is true of one coin toss, it is not a 50% chance if you toss the coin twice. In tossing the coin twice you have the options of: heads, tails, heads, tails (One head and one tail per coin). Since there are four options, it is a 25% chance you will get heads twice in a row. 25% equals 1/4 which equals 2/8.

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