Question
The 95% confidence interval of average age of accidents
in any city during last year for a sample of size 100 with mean age 34.25 from population of standard deviation 10 isSolution
The correct answer is A
The interest earned when a sum is invested at simple interest of 25% p.a., for 3 years, is Rs. 1875. What will be the total amount received after 2 year...
The arithmetic means of the following data is.23,17,20,19,21,20,20
The 5th and 8th term of an arithmetic progression are 13 and -5 respectively. What is the 15th term?
The sum to n terms of the series 1 + 1 + 3 + 1 + 3 + 5 + 1 + 3 + 5 + 7 …………………… is
Find the standard deviation of the following data (rounded of the two decimal places).
5,3,4,7
The mean of a distribution is 25 and the standard deviation is 5. What is the value of coefficient variation?
14, 28, 56, 112, ...... The sum of first 10 numbers in the series is:
In an arithmetic progression, the first term is 4 and the sum of the first 20 terms is 650. Find the common difference.
In an A.P a9 = 40, then find sum of first 17 terms of that A.P.
The fourth term of an arithmetic progression is 6. Then the sum of first seven terms is:
