Statistics MCQs – Basic Probability Part 11
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201. You are given the following probability distribution: p (-1) = 0.4, p (2) = 0.25, p (3) = 0.15 and p (7) = 0.2. What is E (5X + 2) ?
a. 12.5
b. 11.8
c. 14.5
d. 17.0
e. 12.3
Answer: B
202. You are given the following probability distribution: p (-1) = 0.4, p (2) = 0.1, p (3) = 0.2 and p (7) = 0.3. What is E (5X + 2) ?
a. 12.5
b. 11.8
c. 14.5
d. 17.0
e. 12.3
Answer: C
203. You are given the following probability distribution: p (-1) = 0.1, p (2) = 0.4, p (3) = 0.3 and p (7) = 0.2. What is E (5X + 2) ?
a. 12.5
b. 11.8
c. 14.5
d. 17.0
e. 12.3
Answer: D
204. You are given the following probability distribution: p (-1) = 0.4, p (2) = 0.15, p (3) = 0.25 and p (7) = 0.2. What is E (5X + 2) ?
a. 12.5
b. 11.8
c. 14.5
d. 17.0
e. 12.3
Answer: E
205. You are given the following probability distribution: p (-1) = 0.4, p (2) = 0.1, p (3) = 0.3 and p (7) = 0.2. What is V (3X - 1) ?
a. 80.0
b. 78.7
c. 99.5
d. 46.8
e. 79.6
Answer: A
206. You are given the following probability distribution: p (-1) = 0.4, p (2) = 0.25, p (3) = 0.15 and p (7) = 0.2. What is V (3X - 1) ?
a. 80.0
b. 78.7
c. 99.5
d. 46.8
e. 79.6
Answer: B
207. You are given the following probability distribution: p (-1) = 0.4, p (2) = 0.1, p (3) = 0.2 and p (7) = 0.3. What is V (3X - 1) ?
a. 80.0
b. 78.7
c. 99.5
d. 46.8
e. 79.6
Answer: C
208. You are given the following probability distribution: p (-1) = 0.1, p (2) = 0.4, p (3) = 0.3 and p (7) = 0.2. What is V (3X - 1) ?
a. 80.0
b. 78.7
c. 99.5
d. 46.8
e. 79.6
Answer: D
209. You are given the following probability distribution: p (-1) = 0.4, p (2) = 0.15, p (3) = 0.25 and p (7) = 0.2. What is V (3X - 1) ?
a. 80.0
b. 78.7
c. 99.5
d. 46.8
e. 79.6
Answer: E
210. You are given the following probability distribution: p (-2) = 0.2, p (0) = 0.15, p (2) = 0.6 and p (4) = 0.05. What is E (4X – 1) ?
a. 3.00
b. 1.80
c. 3.32
d. 3.80
e. 6.60
Answer: A
211. You are given the following probability distribution: p (-2) = 0.3, p (0) = 0.15, p (2) = 0.45 and p (4) = 0.1. What is E (4X – 1) ?
a. 3.00
b. 1.80
c. 3.32
d. 3.80
e. 6.60
Answer: B
212. You are given the following probability distribution: p (-2) = 0.15, p (0) = 0.2, p (2) = 0.61 and p (4) = 0.04. What is E (4X – 1) ?
a. 3.00
b. 1.80
c. 3.32
d. 3.80
e. 6.60
Answer: C
213. You are given the following probability distribution: p (-2) = 0.2, p (0) = 0.15, p (2) = 0.5 and p (4) = 0.15. What is E (4X – 1) ?
a. 3.00
b. 1.80
c. 3.32
d. 3.80
e. 6.60
Answer: D
214. You are given the following probability distribution: p (-2) = 0.05, p (0) = 0.15, p (2) = 0.6 and p (4) = 0.2. What is E (4X – 1) ?
a. 3.00
b. 1.80
c. 3.32
d. 3.80
e. 6.60
Answer: E
215. You are given the following probability distribution: p (-2) = 0.2, p (0) = 0.15, p (2) = 0.6 and p (4) = 0.05. What is V (2X + 3) ?
a. 12.0
b. 16.4
c. 10.1
d. 15.0
e. 8.8
Answer: A
216. You are given the following probability distribution: p (-2) = 0.3, p (0) = 0.15, p (2) = 0.45 and p (4) = 0.1. What is V (2X + 3) ?
a. 12.0
b. 16.4
c. 10.1
d. 15.0
e. 8.8
Answer: B
217. You are given the following probability distribution: p (-2) = 0.15, p (0) = 0.2, p (2) = 0.61 and p (4) = 0.04. What is V (2X + 3) ?
a. 12.0
b. 16.4
c. 10.1
d. 15.0
e. 8.8
Answer: C
218. You are given the following probability distribution: p (-2) = 0.2, p (0) = 0.15, p (2) = 0.5 and p (4) = 0.15. What is V (2X + 3) ?
a. 12.0
b. 16.4
c. 10.1
d. 15.0
e. 8.8
Answer: D
219. You are given the following probability distribution: p (-2) = 0.05, p (0) = 0.15, p (2) = 0.6 and p (4) = 0.2. What is V (2X + 3) ?
a. 12.0
b. 16.4
c. 10.1
d. 15.0
e. 8.8
Answer: E