The probability of drawing a king or a spade from a deck of cards is: MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Statistics Questions
Question #1
Report Error
The primary use of vital statistics is to:
Correct Answer: Option C
Explanation:
Vital statistics provide critical inputs for public health planning, evaluating healthcare interventions, forecasting population trends, and formulating social policies related to fertility, mortality, and family welfare.
Vital statistics provide critical inputs for public health planning, evaluating healthcare interventions, forecasting population trends, and formulating social policies related to fertility, mortality, and family welfare.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
Report Error
Demographic transition theory suggests that in the third stage, populations experience:
Correct Answer: Option D
Explanation:
Stage three of demographic transition features falling fertility due to urbanization, education, and contraception, while mortality remains low, leading to slowing population growth.
Stage three of demographic transition features falling fertility due to urbanization, education, and contraception, while mortality remains low, leading to slowing population growth.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
Report Error
The harmonic mean of speeds 30 km/h and 60 km/h for equal distances is:
Correct Answer: Option C
Explanation:
For equal distances, average speed = harmonic mean = 2 / (1/30 + 1/60) = 2 / (2/60 + 1/60) = 2 / (3/60) = 2 × 20 = 40 km/h. Arithmetic mean (45) would be incorrect here.
For equal distances, average speed = harmonic mean = 2 / (1/30 + 1/60) = 2 / (2/60 + 1/60) = 2 / (3/60) = 2 × 20 = 40 km/h. Arithmetic mean (45) would be incorrect here.
This question belongs to:
Accountancy and Statistics
Statistics
No comments yet. Be the first to start the discussion!