Using the frequency table below, what is the probability of boys who ordered 0 up to 10 lunches?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse

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?