Which reason best describes why you can divide any number by 100 by moving the decimal point two places to the left? dividing a number by 100 is the same as subtracting the number 100 times. dividing by 100 is the same as removing a zero. moving the decimal point makes the number smaller. moving the decimal point two places to the left makes the number 1/100 of its original value.

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?