# The value of the correlation coefficient lies between

Question: The value of the correlation coefficient lies between A. 0 and 1 B. – 1 and 1 C. -1 and 0 D. – 0.5 and 0.5 Answer» b. – 1 and 1 Note: The above multiple-choice question is for…

# If the A.M of 14, 16, x, 25, 21 be 19, then the value of x is

Question: If the A.M of 14, 16, x, 25, 21 be 19, then the value of x is A. 16 B. 19 C. 12 D. 21 Answer» b. 19 Note: The above multiple-choice question is for all general and Competitive…

# The Geometric Mean (GM) for the series 1, 3, 9 is

Question: The Geometric Mean (GM) for the series 1, 3, 9 is A. 3 B. 2 C. 1/3 D. ½ Answer» a. 3 Note: The above multiple-choice question is for all general and Competitive Exams in India.

# If the sum of squares of the deviations of 10 observations taken from mean 50 is 250,then C.V is

Question: If the sum of squares of the deviations of 10 observations taken from mean 50 is 250,then C.V is A. 10% B. 12% C. 20% D. 15% Answer» a. 10% Note: The above multiple-choice question is for all general…

# The vertical axis of an ogive shows

Question: The vertical axis of an ogive shows A. Cumulative frequencies B. Absolute frequencies C. Frequency densities D. Class boundaries Answer» a. Cumulative frequencies Note: The above multiple-choice question is for all general and Competitive Exams in India.

# The absolute deviations of the values of a variables from the mean are 10, 15, 19, 2, 14. The mean deviation is 15

Question: The absolute deviations of the values of a variables from the mean are 10, 15, 19, 2, 14. The mean deviation is 15 A. 16 B. 14 C. 12 D. 9 Answer» c. 12 Note: The above multiple-choice question…

# If a variable x takes the values 12 and 24 with equal frequencies, then mean of x is

Question: If a variable x takes the values 12 and 24 with equal frequencies, then mean of x is A. 36 B. 18 C. 22 D. 28 Answer» b. 18 Note: The above multiple-choice question is for all general and…

# The median of the numbers 94, 33, 86, 68, 32, 80, 48 and 70 is

Question: The median of the numbers 94, 33, 86, 68, 32, 80, 48 and 70 is A. 68 B. 69 C. 64 D. 70 Answer» b. 69 Note: The above multiple-choice question is for all general and Competitive Exams in…

# For a frequency distribution coefficient of skewness = 0.6; mean = 172 and mode = 163.The value of the variance is

Question: For a frequency distribution coefficient of skewness = 0.6; mean = 172 and mode = 163.The value of the variance is A. 169 B. 215 C. 196 D. 225 Answer» d. 225 Note: The above multiple-choice question is for…

# Out of total outlay 40,000 (crore) during an annual plan of a country, the central angle represented by education of amount Rs. x crore is 720. The value of x (in crore) is

Question: Out of total outlay 40,000 (crore) during an annual plan of a country, the central angle represented by education of amount Rs. x crore is 720. The value of x (in crore) is A. 10,000 B. 9,000 C. 6,000…