An observational study is conducted to investigate the association between age and total serum cholesterol. The correlation is estimated at r=0.35. The study involves n=125 participants and mean (std dev) age is 44.3 (10.0) years with an age range of...
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Solved:An observational study is conducted to investigate the association between age and total serum cholesterol. The correlation is estimated at

Solved:The probability that you will win a game is 0.45. (a) If you play the game 80 times, what is the most likely number of wins
The probability that you will win a game is 0.45. (a) If you play the game 80 times, what is the most likely number of wins? (b) What are the mean and variance of a binomial distribution with p =... 
Solved:It is often assumed that the auto traffic that arrives at the intersection during a unit time period has a Poisson distribution with expected value
It is often assumed that the auto traffic that arrives at the intersection during a unit time period has a Poisson distribution with expected value $m$. Assume that the number of cars $X$ that arrive at an intersection from the... 
Solved:Let $T$ be the survival time and $T$ follows an exponential distribution.
Let $T$ be the survival time and $T$ follows an exponential distribution. Derive the expression for survival function of $T$. Also obtain expression for force of mortality. Solution Let $T$ be the survival time. The simplest parametric model for survival... 
Solved:Derive the expression for survival function of $T$,
Derive the expression for survival function of $T$, where $T$ is the survival time having Two parameter weibull distribution. Solution Let the survival time $T$ follows two parameter Weibull distribution. The pdf of $T$ is $$ \begin{aligned} f(x;\alpha, \beta)&= \begin{cases}...