Let us call p the probability of occurence of the event D: "a student owns a dog"
and q the probability of occurence of the event C: "a student owns a cat"
In this exercice we have to assume that the events D and C are independent which means that none of them influence the occurence of the other. Because if they are not independent there really is noway to deduce q here.
In reality those events would probably not be independent since if I had a dog, I would really think twice before buying a cat ;)
Well if they are independent then you know that The Probability of occurence of D and C at the same time equals P(D)*P(C)=p*q
So we can deduce that 2/15=1/3*q
q=3*2/15
q=6/15
q=2/5
Once again this is theoritical <span />
Answer:
x = 4, x= -8
Step-by-step explanation:
Current Account Balance = $1,624.35
Initial Deposit = $975
Interest Rate (Simple) = 3.7% simple interest
Interest Earned = Current Account Balance - Initial Deposit
⇒ Interest Earned = $1,624.35 - $975
⇒ Interest Earned = $649.35
Now the Formula for Simple Interest is:
Simple Interest = ×, where P is the initial deposit, R is the rate of interest and T is the time period
⇒ 649.35 =
⇒ T =
⇒ T = 18
Hence, Jeremiah has had the account for 18 years.