Calculating the Odds of Dr. Johnson Tossing Two Coins

Possible Outcomes

When Dr. Johnson tosses two coins, there are four potential outcomes: HH (both heads), HT (one head and one tail), TT (both tails), and TH (one tail and one head).

Favorable Outcomes

Out of these outcomes, two result in one head and one tail: HT and TH.

Probability Calculation

The probability of obtaining one head and one tail is calculated as follows:

Number of favorable outcomes (HT and TH) / Total possible outcomes (HH, HT, TT, TH) = 2/4.

This simplifies to 1/2.

Conclusion

Thus, the odds of Dr. Johnson tossing two coins and getting one head and one tail are 50%.