Answer:
1/7
Step-by-step explanation:
Lets start with the probability of flipping tails, 1/2.
Then the probability of the day starting with the letter s, 2/7.
Calculate the final probability by multiplying the two together.
[tex]\frac{1}{2}*\frac{2}{7}=\frac{2}{14}[/tex]
You can simplify 2/14 down to 1/7