Answer
Effective communication is the life blood of every organization and a key to success in our business career and our personal life. Effective communication is vital inside the company because employees can be better motivated and more efficient by it. ... Success of the business depends on effective communication.
Explanation:
On the midnight shift, the number of patients with head trauma in an emergency room has the probability distribution shown below. х P(x) 0 .09 1 .32 2 3 .27 .17 4 .11 5 .04 Total 1.00 (a) Calculate the mean and standard deviation. (Round your mean value to 2 decimal places and standard deviation to 3 decimal places.) Mean Standard deviation LI
Answer:
2.01 ; 1.918
Explanation:
Given the data:
X : ____ 0 __ 1 ___ 2 ___ 3 ____ 4 ____ 5
P(x) : 0.09 _ 0.32 _0.27_0.17___0.11 __ 0.04
The mean, E(x) :
Σ(X * p(x))
= (0*0.09)+(1*0.32)+(2*0.27)+(3*0.17)+(4*0.11)+(5*0.04) = 2.01
Standard deviation = sqrt(variance)
Variance = Var(x)
Var(X) = Σx²*p(x) - E(x)
Σ[(0^2 * 0.09) + (1^2 * 0.32) + (2^2 * 0.27) + (3^2 * 0.17) + (4^2 * 0.11) + (5^2 * 0.04)] - 2.01
= 5.69 - 2.01
= 3.68
SD(x) =sqrt(3.68)
SD(x) = 1.918
With the use/abuse of alcohol, the heart is more efficient in the use of nutrients by the heart tissue.
true or false
In how many ways can 10 athletes be awarded a first-place medal, a second-place medal, and a third-place medal?
answer is
10P3 = 10 x 9 x 8 = 720.