If x has a probability density of

f(x)= ke^(-3x) for x> 0
= 0 otherwise

find

a. find k
b. p(0< x< 1)
c. f(x)
d. use f(x) to find p(0< x< 1)

Twelve friends shared 8 small pizza equally.how many pizzas did each person get?

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is