Which of the following is a cause of decline in India's infant mortality rate? MCQ with Answer and Explanation

Which of the following is a cause of decline in India's infant mortality rate?
A. Increase in poverty
B. Decrease in female literacy
C. Improved immunization and healthcare facilities
D. Higher fertility
Answer: Option C
Solution (By JKSSB Mock Tests)
Better health services, immunization, and sanitation reduce infant deaths.

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Practice More Statistics Questions

Question #1
Assertion (A): If A and B are independent events, then A' and B' are also independent. Reason (R): P(A'∩B') = P(A')P(B') when A and B are independent. Choose the correct option:
A. A is true, R is false
B. Both A and R are true, but R is not the correct explanation of A
C. Both A and R are true, and R is the correct explanation of A
D. A is false, R is true

Correct Answer: Option C


Explanation:
If A and B are independent, then their complements are independent. The formula P(A'∩B') = (1-P(A))(1-P(B)) holds, so R is true and explains A.

This question belongs to: Accountancy and Statistics Statistics
Question #2
A box contains 4 white and 6 black balls. A ball is drawn and not replaced. Then another ball is drawn. The probability that both are white is:
A. 12/90
B. 6/90
C. 2/15
D. 1/6

Correct Answer: Option C


Explanation:
(4/10)×(3/9)=12/90=2/15.

This question belongs to: Accountancy and Statistics Statistics
Question #3
For the above frequencies, Yule's coefficient of association Q is:
A. 0.5
B. 0.33
C. 0.8
D. 0.714

Correct Answer: Option D


Explanation:
ad = 30×40 = 1200, bc = 20×10 = 200. Q = (1200-200)/(1200+200) = 1000/1400 = 0.714.

This question belongs to: Accountancy and Statistics Statistics