Statistics MCQs – Basic Probability Part 2
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21. If P (A) = 0.2, P (B) = 0.3 and P (A|B) = 0.9, what is P (A and B) ?
a. 0.15
b. 0.42
c. 0.27
d. 0.48
e. 0.15
Answer: C
22. If P (A) = 0.8, P (B) = 0.8 and P (A|B) = 0.6, what is P (A and B) ?
a. 0.15
b. 0.42
c. 0.27
d. 0.48
e. 0.15
Answer: D
23. You are given the following: P (A and B) = 0.17, P ( and E) = 0.32, P (A and ) = 0.17 and P ( and ) = 0.34. What is P (A) ?
a. 0.34
b. 0.35
c. 0.32
d. 0.37
e. 0.28
Answer: A
24. You are given the following: P (A and E) = 0.20, P ( and E) = 0.32, P (A and ) = 0.15 and P ( and ) = 0.33. What is P (A) ?
a. 0.34
b. 0.35
c. 0.32
d. 0.37
e. 0.28
Answer: B
25. You are given the following: P (A and E) = 0.19, P ( and E) = 0.38, P (A and ) = 0.13 and P ( and ) = 0.30. What is P (A) ?
a. 0.34
b. 0.35
c. 0.32
d. 0.37
e. 0.28
Answer: C
26. You are given the following: P (A and E) = 0.17, P ( and E) = 0.33, P (A and ) = 0.20 and P ( and ) = 0.3. What is P (A) ?
a. 0.34
b. 0.35
c. 0.32
d. 0.37
e. 0.28
Answer: D
27. You are given the following: P (A and E) = 0.16, P ( and E) = 0.32, P (A and ) = 0.12 and P ( and ) = 0.40. What is P (A) ?
a. 0.34
b. 0.35
c. 0.32
d. 0.37
e. 0.28
Answer: E
28. You are given the following: P (A and E) = 0.15, P ( and E) = 0.32, P (A and ) = 0.10 and P ( and ) = 0.43. What is P (A) ?
a. 0.25
b. 0.27
c. 0.29
d. 0.34
e. 0.33
Answer: A
29. You are given the following: P (A and E) = 0.16, P ( and E) = 0.32, P (A and ) = 0.11 and P ( and ) = 0.41. What is P (A) ?
a. 0.25
b. 0.27
c. 0.29
d. 0.34
e. 0.33
Answer: B
30. You are given the following: P (A and E) = 0.17, P ( and E) = 0.36, P (A and ) = 0.10 and P ( and ) = 0.37. What is P (A) ?
a. 0.25
b. 0.27
c. 0.29
d. 0.34
e. 0.33
Answer: B
31. You are given the following: P (A and E) = 0.24, P ( and E) = 0.32, P (A and ) = 0.10 and P ( and ) = 0.34. What is P (A) ?
a. 0.25
b. 0.27
c. 0.29
d. 0.34
e. 0.33
Answer: D
32. You are given the following: P (A and E) = 0.19, P ( and E) = 0.32, P (A and ) = 0.14 and P ( and ) = 0.35. What is P (A) ?
a. 0.25
b. 0.27
c. 0.29
d. 0.34
e. 0.33
Answer: E
33. You are given the following: P (A and B) = 0.17, P ( and E) = 0.32, P (A and ) = 0.17 and P ( and ) = 0.34. What is P (E) ?
a. 0.49
b. 0.52
c. 0.57
d. 0.50
e. 0.48
Answer: A
34. You are given the following: P (A and E) = 0.20, P ( and E) = 0.32, P (A and ) = 0.15 and P ( and ) = 0.33. What is P (E) ?
a. 0.49
b. 0.52
c. 0.57
d. 0.50
e. 0.48
Answer: B
35. You are given the following: P (A and E) = 0.19, P ( and E) = 0.38, P (A and ) = 0.13 and P ( and ) = 0.30. What is P (E) ?
a. 0.49
b. 0.52
c. 0.57
d. 0.50
e. 0.48
Answer: C
36. You are given the following: P (A and E) = 0.17, P ( and E) = 0.33, P (A and ) = 0.20 and P ( and ) = 0.3. What is P (E) ?
a. 0.49
b. 0.52
c. 0.57
d. 0.50
e. 0.48
Answer: D
37. You are given the following: P (A and E) = 0.16, P ( and E) = 0.32, P (A and ) = 0.12 and P ( and ) = 0.40. What is P (E) ?
a. 0.49
b. 0.52
c. 0.57
d. 0.50
e. 0.48
Answer: E
38. You are given the following: P (A and E) = 0.15, P ( and E) = 0.32, P (A and ) = 0.10 and P ( and ) = 0.43. What is P (E) ?
a. 0.47
b. 0.48
c. 0.53
d. 0.56
e. 0.51
Answer: A
39. You are given the following: P (A and E) = 0.16, P ( and E) = 0.32, P (A and ) = 0.11 and P ( and ) = 0.41. What is P (E) ?
a. 0.47
b. 0.48
c. 0.53
d. 0.56
e. 0.51
Answer: B
40. You are given the following: P (A and E) = 0.17, P ( and E) = 0.36, P (A and ) = 0.10 and P ( and ) = 0.37. What is P (E) ?
a. 0.47
b. 0.48
c. 0.53
d. 0.56
e. 0.51
Answer: C