Write an equation for the nth term of the sequence: -1, 3, -9, 27 . . .

an = ( )n-1

Group of answer choices

1(3)^(n-1)

-1(-1/3)^(n-1)

-1(-3)^(n-1)

-3(-1)^(n-1)

According to a study done by de anza students, the height for asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. suppose one asian adult male is randomly chosen. let x = height of the individual. a) give the distribution of x. x ~ b) find the probability that the person is between 64 and 69 inches. write the probability statement. what is the probability?