Find the required probability and determine whether the given sample mean would be considered unusual. for a sample of nequals=75, find the probability of a sample mean being greater than 219 if muμequals=218 and sigmaσequals=6.2\.

Im a little confused on how to answer this, what is sigmaoequals? and muuequals

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

10 b/c 5*2 =10

step-by-step explanation: