The tables represent the functions f(x) and g(x).
if(x) = 2 x +7
g(x)-2x+15
which input value produces the same output value for the
two functions?
o x= -12
o x= -9
o x=-6
o x= -3
g(x)
-15
-15
o
t15
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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?