Question 2. The life span of an insect is BLACK X (ladder unit) with a single night of XEU SU ( kx² ( 4 - x ) neu x = [ 0.4 ] f ( x ) = { kx² ( 4 0 if vice versa a / Find the mean and standard deviation of life expectancy X. b / Observe the life spans of those 20 insects and call Y the number of insects that die before it is 1 month old. What distribution , calculate EY , DY .

Find the power series expantion of f(z)=log(4=3z) at the point z=-1

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?