You claim to have a magic coin that will land on heads whenever you want. your friend dares you to prove it by tossing 4 heads in a row. assuming the coin is fair, what is the probability that your magic will fail? a) 50% b) 62.5% c) 75% d) 93.75%

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

24

step-by-step explanation: