A quality control manager notes down the life times of 10 electronic components.
Then the random variable is

The following data gives the information on the observed life times (in hours) of 225 electrical components: Determine the modal lifetimes of the components.

The charge equivalent to 6 times 10^18 electrons is

Write short notes on the abiotic component, in which life on earth began.

Let x be a random variable denoting the life time of an electrical equipment having probability density fucntion {:(F(x)="ke"^(-3x),"for"xgt0),(=0,"for"xle0):} P(X lt2)

Let x be a random variable denoting the life time of an electrical equipment having probability density fucntion {:(F(x)="ke"^(-3x),"for"xgt0),(=0,"for"xle0):} Find Value of k=0

Let x be a random variable denoting the life time of an electrical equipment having probability density fucntion {:(F(x)="ke"^(-3x),"for"xgt0),(=0,"for"xle0):} Distrubution fumnction of x

Let x be a random variable denoting the life time of an electrical equipment having probability density fucntion {:(F(x)="ke"^(-3x),"for"xgt0),(=0,"for"xle0):} P(Xge4)

A sample of 10 batteries is selected X = Number of batteries that failed within 1000 hours. Then the random variable is