What percentage of the area under the normal curve lies as given below? (a) to the right of μ (Enter an exact number.)

Correct: Your answer is correct.
%

(b) between μ − 2σ and μ + 2σ (Enter an exact number.)

Incorrect: Your answer is incorrect.
%

(c) to the right of μ + 3σ (Enter a number. Use 2 decimal places.)

Incorrect: Your answer is incorrect.
%

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

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?

Can you me find the slope! (30 points)