you flip a coin twice. find the probability that at least one of the tosses showed heads.

1/2, 50%,
In one coin, there is one head and 1 tail
In 2 flips, there are 2 heads and 2 tails
So, all together, there are 4 different possibilities, and 2 are heads
hope this helps!

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mariacsinning mariacsinning · Answer 2 · 2019-09-03T03:21:19+02:00

Answer:

The probability is 0.75[

Step-by-step explanation:

If we flip a coin twice, we have 4 possibilities, those possibilities are:

TT: we get tails the two times.
TH: On the first flip we get Tails and on the second flip we get Heads.
HT: On the first flip we get Heads and on the second flip we get Tails.
HH: we get Heads the two times.

From these 4 options, 3 show heads at least one of the tosses. These 3 options are TH, HT and HH.

Taking into account that all the possibilities have the same chance, the probability is calculated as the division between 3 and 4 as:

tex]\frac{3}{4} =0.75[/tex]