TheJoker
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 Nov15 answered What is degree of freedom in statistics? Nov15 answered simplify natural logarithm Nov15 comment simplify natural logarithm no.. i'll write the answer as it has bypassed the comment stage.. Nov15 comment simplify natural logarithm Hi, Welcome to math.SE. Please try to use $\LaTeX$ here. If $C$ is a constant, it is better to cancel $\frac 12$ from both sides.. and then use $\ln a - \ln b=\ln \frac ab$ Nov15 comment Capping part of a sum if I understand meaning of capped spend correctly,(it being maximum amount you can spend on x), then it is nothing but $15 \%$ of total spend. What is the question then?? Please clarify the question.. Nov15 comment Finding the locus Yes, that was what I meant.. Just wanted him to do this work . :-P Nov15 comment Why does the distribution of the probability change this way? I don't think your question is clear. What are you asking? Does Bob wants to conduct Testing of Hypothesis for $H_0 : p \sim U(0,1) \text {vs } H_1 : p \sim Beta (3,1)$? (If he does, it might explain the question a little bit.) Please consider editing your question. Nov15 answered Finding the locus Nov15 answered $I_m - AB$ is invertible if and only if $I_n - BA$ is invertible. Nov15 comment Positive integers less than $N$ not divisible by $4$ or $6$ lol ;-), happened to me a lot of times.. Nov15 answered Positive integers less than $N$ not divisible by $4$ or $6$ Nov14 revised Example of a general random variable with finite mean but infinite variance clarified the answer.. Nov13 comment What's the proper way for calculating first quartile? math.stackexchange.com/questions/207090/… please check this.. Nov13 comment Example of a general random variable with finite mean but infinite variance Distribution is defined for $\alpha > 0$ but the question is satisfied for $\alpha \in (1,2]$ as then expectation is finite and variance infinite.., for $\alpha \leq 1$ expectation is infinite, variance doesn't exist.. but Nov13 revised chi-square distribution: determining the constants c and d latexified Nov13 answered Example of a general random variable with finite mean but infinite variance Nov13 comment chi-square distribution: determining the constants c and d Hi, What have you tried? IMO you cannot find such values without using tables.. Nov13 suggested approved edit on chi-square distribution: determining the constants c and d Nov11 comment Probability of winning in the lottery Check the comment of Ross Millikan, he did the question assuming you need to get exactly $3$ right. Do similarily for exactly $4$ right and exactly $5$ right. Then you get total no of favourable outcomes. Alternatively, find the complementary probability, i.e getting less than $3$ as that would be easier.. Nov11 comment Probability of winning in the lottery Hi, welcome to math.SE. Please clarify your question as question is not clear.Like what happens when we guess more than $3$ numbers? Are the rolled numbers different? Thanks.