Step-by-step explanation:
Using log properties


Then

Plug in the knowns


Answer:
0.06597
Step-by-step explanation:
Given that thirty-seven percent of the American population has blood type O+
Five Americans are tested for blood group.
Assuming these five Americans are not related, we can say that each person is independent of the other to have O+ blood group.
Also probability of any one having this blood group = p = 0.37
So X no of Americans out of five who were having this blood group is binomial with p =0.37 and n =5
Required probability
=The probability that at least four of the next five Americans tested will have blood type O+
= 
Answer:
-3/5
Step-by-step explanation:
10-8/4-12=-0.6=-3/5
Answer:
option 2 is correct
Step-by-step explanation:
Answer: (x, y) = (-5, -10)
Step-by-step explanation: too lazy