If P(A) = 2/3 and P(B) = 1/2 and A, B are independent, then P(A∩B) is: MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Statistics Questions
Question #1
Report Error
If the arithmetic mean of 10 numbers is 40 and the mean of the same numbers after subtracting a constant from each is 25, the constant subtracted was:
Correct Answer: Option D
Explanation:
New mean = old mean - constant ⇒ 25 = 40 - k ⇒ k = 15.
New mean = old mean - constant ⇒ 25 = 40 - k ⇒ k = 15.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
Report Error
For a normal distribution, the relationship between Quartile Deviation (QD), Mean Deviation (MD), and Standard Deviation (SD) is roughly:
Correct Answer: Option A
Explanation:
In a perfectly normal distribution, QD is about 2/3 of SD, and MD is about 4/5 of SD, yielding the 4:5:6 ratio.
In a perfectly normal distribution, QD is about 2/3 of SD, and MD is about 4/5 of SD, yielding the 4:5:6 ratio.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
Report Error
The sex ratio at birth biologically is approximately:
Correct Answer: Option C
Explanation:
Naturally, around 105 male births occur for every 100 female births.
Naturally, around 105 male births occur for every 100 female births.
This question belongs to:
Accountancy and Statistics
Statistics
No comments yet. Be the first to start the discussion!