Statistics MCQs – Basic Probability Part 9
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161. 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 P (X > 2) ?
a. 0.05
b. 0.10
c. 0.04
d. 0.15
e. 0.20
Answer: B
162. 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 P (X > 2) ?
a. 0.05
b. 0.10
c. 0.04
d. 0.15
e. 0.20
Answer: C
163. 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 P (X > 2) ?
a. 0.05
b. 0.10
c. 0.04
d. 0.15
e. 0.20
Answer: D
164. 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 P (X > 2) ?
a. 0.05
b. 0.10
c. 0.04
d. 0.15
e. 0.20
Answer: E
165. 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 P (X ⩽ 2) ?
a. 0.95
b. 0.90
c. 0.96
d. 0.85
e. 0.8
Answer: A
166. 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 P (X ⩽ 2) ?
a. 0.95
b. 0.90
c. 0.96
d. 0.85
e. 0.8
Answer: B
167. 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 P (X ⩽ 2) ?
a. 0.95
b. 0.90
c. 0.96
d. 0.85
e. 0.8
Answer: C
168. 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 P (X ⩽ 2) ?
a. 0.95
b. 0.90
c. 0.96
d. 0.85
e. 0.8
Answer: D
169. 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 P (X ⩽ 2) ?
a. 0.95
b. 0.90
c. 0.96
d. 0.85
e. 0.8
Answer: E
170. You are given the following probability distribution: p (1) = 0.2, p (3) = 0.15, p (5) = 0.6 and p (7) = 0.05. What is E (X) ?
a. 4.00
b. 3.60
c. 4.10
d. 3.10
e. 4.30
Answer: A
171. You are given the following probability distribution: p (1) = 0.3, p (3) = 0.15, p (5) = 0.5 and p (7) = 0.05. What is E (X) ?
a. 4.00
b. 3.60
c. 4.10
d. 3.10
e. 4.30
Answer: B
172. You are given the following probability distribution: p (1) = 0.15, p (3) = 0.2, p (5) = 0.6 and p (7) = 0.05. What is E (X) ?
a. 4.00
b. 3.60
c. 4.10
d. 3.10
e. 4.30
Answer: C
173. You are given the following probability distribution: p (1) = 0.2, p (3) = 0.15, p (5) = 0.55 and p (7) = 0.1. What is E (X) ?
a. 4.00
b. 3.60
c. 4.10
d. 3.10
e. 4.30
Answer: C
174. You are given the following probability distribution: p (1) = 0.05, p (3) = 0.3, p (5) = 0.6 and p (7) = 0.05. What is E (X) ?
a. 4.00
b. 3.60
c. 4.10
d. 3.10
e. 4.30
Answer: E
175. You are given the following probability distribution: p (1) = 0.2, p (3) = 0.15, p (5) = 0.6 and p (7) = 0.05. What is V (X) ?
a. 3.00
b. 3.64
c. 2.59
d. 3.39
e. 1.17
Answer: A
176. You are given the following probability distribution: p (1) = 0.3, p (3) = 0.15, p (5) = 0.5 and p (7) = 0.05. What is V (X) ?
a. 3.00
b. 3.64
c. 2.59
d. 3.39
e. 1.17
Answer: B
177. You are given the following probability distribution: p (1) = 0.15, p (3) = 0.2, p (5) = 0.6 and p (7) = 0.05. What is V (X) ?
a. 3.00
b. 3.64
c. 2.59
d. 3.39
e. 1.17
Answer: C
178. You are given the following probability distribution: p (1) = 0.2, p (3) = 0.15, p (5) = 0.55 and p (7) = 0.1. What is V (X) ?
a. 3.00
b. 3.64
c. 2.59
d. 3.39
e. 1.17
Answer: D
179. You are given the following probability distribution: p (1) = 0.05, p (3) = 0.3, p (5) = 0.6 and p (7) = 0.05. What is V (X) ?
a. 3.00
b. 3.64
c. 2.59
d. 3.39
e. 1.17
Answer: E
180. 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 (X) ?
a. 1.00
b. 0.70
c. 1.08
d. 1.20
e. 1.90
Answer: A