P(x) 0.304 0.261196-1-0.104 T0.135 O A. O C O D. 0 5 The mean isactivities. (Rou

Question

P(x) 0.304 0.261196-1-0.104 T0.135 O A. O C O D. 0 5 The mean isactivities. (Round to one decimal place as needed.) A. value of an experiment will be equal to the mean of the random variable in most experiments The observed O C. As the number of experiments decreases, the mean of the observations will approach the mean of the random varilable. O D. The observed value of an experiment will be less than the mean of the random variable in most experiments (d) Compute the standard deviation of the random The standard deviation is (Round to one decimal place as needed.) activites.

Explanation / Answer

a) This a dicrete probability distribution because the sum of the probabilities is equal to 1 and each probability is > 0

b) Correct answer : Option (D)

c) Mean :

Mean = 1.505

Correct answer: Option (B)

d)

Variance = 4.141 - 1.5052= 1.875975

SD = sqrt(variance) = 1.36966

X P(X=x) xP(X=x) 0 0.304 0 1 0.261 0.261 2 0.196 0.392 3 0.104 0.312 4 0.135 0.54 Total: 1.505

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