NO LINKS! What is the Vertex - (x , y)

Point of Extremum - Minimum or Maximum; y = ?

Axis of Symmetry - x = ?

x-intercept(s) - (x , 0)

y-intercept - (0, y)

Domain - D: { }

Range - R: { }

Of this graph Will be giving away brainliest!

the answer is b.)

< 1=< 2

he answer is x=1x3 because x=1 to x=3

irst, find the z score of a score of 80. this is given by the formula z = (x-u)/o, where x is the score, u is the mean, and o is the standard deviation. this gives

z = (80-78)/12 = 1/6 = .1667

now, find what percentile a z score of 1/6 correlates to in the normal distribution.

a z score of 1/6 = .1667 is equivalent to the 56.36th percentile of the distribution. so the probability a score is over this is 1-.5636 = .4364

the mean of a sample mean is equal to the original mean. however, the standard deviation of a sample mean is equal to the original standard deviation divided by the square root of n (sample size). so the new standard deviation is 12/sqrt(16) = 3.

the new z score is 80-78/3 = 2/3 = .667. this is equivalent to the 74.86th percentile. so the probability that the mean will be greater than this score is 1-.7486 = .2514.