Answer: The answer I got was A) 2.5
Step-by-step explanation:
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<span>Write the equation
</span>
3n - 6 = n + 8
hope it helps
You need to make the right side = 0
To do this you subtract 10 from both sides of the equation:-
x^2 + 6x + 9 - 10 = 10 - 10
x^2 + 6x - 1 = 0
All possible outcomes - 6
odd number - 3
probability -
Answer:
The probability that more than half of them have Type A blood in the sample of 8 randomly chosen donors is P(X>4)=0.1738.
Step-by-step explanation:
This can be modeled as a binomial random variable with n=8 and p=0.4.
The probability that k individuals in the sample have Type A blood can be calculated as:

Then, we can calculate the probability that more than 8/2=4 have Type A blood as:
