Two coins were tossed 10 times. The results are shown in the table below.
result tableThe first column has the word Toss in the 1st Row and the word Results in the second row. The second column has the number 1 in the 1st Row and the letters H H in the 2nd Row. The third column has the number 2 in the 1st Row and the letters T T in the 2nd Row. The fourth column has the number 3 in the 1st Row and the letters H T in the 2nd Row. The fifth column has the number 4 in the 1st Row and the letters T H in the 2nd Row. The sixth column has the number 5 in the 1st Row and the letters H T in the 2nd Row. The seventh column has the number 6 in the 1st Row and the letters H H in the 2nd Row. The eighth column has the number 7 in the 1st Row and the letters T H in the 2nd Row. The ninth column has the number 8 in the 1st Row and the letters T T in the 2nd Row. The tenth column has the number 9 in the 1st Row and the letters T H in the 2nd Row. The eleventh column has the number 10 in the 1st Row and the letters H T in the 2nd Row.
What is the experimental probability that at least one of the coins landed on heads? Express the probability as a decimal.
A. 0.8
Looking at the table, we see that there are 7 out of 10 trials where at least one coin landed on heads (rows 2, 3, 4, 6, 7, 9, 10). So the experimental probability is 7/10, which can be simplified to 0.7 as a decimal.
Therefore, the answer is not A) 0.8, but rather:
A. 0.7
To find the experimental probability that at least one of the coins landed on heads, you need to count the number of times where either coin landed on heads (H). From the given table, we can see that there are a total of 6 times where at least one coin landed on heads (H).
Therefore, the experimental probability can be calculated as the number of successful outcomes (at least one coin landing on heads) divided by the total number of outcomes (10 tosses).
Experimental Probability = Number of successful outcomes / Total number of outcomes
Experimental Probability = 6 / 10
Experimental Probability = 0.6
So, the experimental probability that at least one of the coins landed on heads is 0.6.