Answer:
0.160
Step-by-step explanation:
Given that:
Percentage population with blood group o = 45%
probability that exactly 6 people in a group of 10 random people have type o blood
Using binomial probability distribution formula :
n = 10, r = 6 ;
Probability of success (p) (population with blood group o = 45% = 0.45
Probability of failure (1 - p) population without blood group o = (1 - 0.45) = 0.55
nCr * p^r * (1 - p)^(n-r)
10C6 * 0.45^6 * 0.55^4
210 * 0.00830 * 0.0915
= 0.1594845
= 0.160
