Consider an arbitrary, continuous normal distribution with a given mean and standard deviation. derive an integral function that gives the percentile of a particular value, x. the integration is analytical, yet it is often given a functional representation look it up and plot the erf function in terms of the mean and standard deviation. estimate the 25th and 75th percentile. within how many standard deviations from the mean is 50% of the distribution?

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

10 points? me . its important ‼️‼️

For the feasibility region shown below find the maximum value of the function p=3x+2y