Question
If A borrowed Rs. P at x% and B borrowed Rs. Q (>P)
at y% per annum at simple interest at the same time, then the amount of their debts will be equal afterSolution
As we know, Amount = P + Prt/100 According to the question Q + (Q × y × t)//100 = P + (P × x × t)/100 ⇒ 100Q + Qyt = 100P + Pxt ⇒ Pxy - Qyt = 100Q - 100P ⇒ t (Px - Qy) = 100 (Q - P) ⇒ t = 100 {(Q - P)/(Px - Qy)} years
The mean deviation and coefficient of mean deviation of 5 observation are 1.2 and 0.4. If the sum of the first four terms is 10, then the fifth term is...
Which of the following is the most relevant for deriving a point estimate?
The value of a and b so that the following is probability mass function
X:                           0      �...
Fundamental principles of design of experiment are
(I) Randomization
(II) Replication
(III) Local control
Which option is correct?
The second and fourth moment about mean for a distribution are 4 and 18 respectively. What is the value of Pearson's coefficient of skewness β ₂ ? <...
Statistics is not applicable to ________ observation.
For the ANOVA which of the following options is INCORRECT.
1.      Null hypothesis H0 : μ1 = μ2 = ... = μn
2.      F ...
If the random sample of size n is drawn without replacement from a finite population of size N, the correction factor for standard error of sample mean...
For the discrete distribution, the Pearson's coefficient of skewness β2 is always:
If the second and third moment about the origin are 8 and 18 and the third moment about mean is -14 , then the first moment about the origin is:
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