Answer: 0.27648
Step-by-step explanation:
Given : The proportion of all individuals have group A blood : p=0.040
Total individuals give blood : n= 6
Let X be the number of individuals have group A blood.
Since all individual are independent of each other.

Formula :
, where n= sample size , p = probability of getting success in each trial.
The probability that exactly three of the individuals have group A blood. :

The probability that exactly three of the individuals have group A blood. is 0.27648
Answer:
t = 5
Step-by-step explanation:

Subtract 19 from 39
Divide by 4
Answer:
3 would be 3 million
Step-by-step explanation:
Answer:
d= 42
Step-by-step explanation: