Answer:
The median is 17 and the mode is 19
Step-by-step explanation:
Answer: 0.2195
Step-by-step explanation:
Binomial distribution formula :-
, where P(x) is the probability of x successes in the n independent trials of the experiment and p is the probability of success.
Given : The probability of that the general population has blood type A = 
Sample size : n=6
Now, the probability that exactly three of them have blood type A is given by :-

Therefore, the probability that exactly three of them have blood type A = 0.2195
Answer:
Demarcus is right the phone will cost $345
Step-by-step explanation:
15% of 300 = 45
300+45=345
800 * ( 6.45 / 100 ) = 8 * 6.45 = 51.6$ ;