Anormal population has known mean μ = 50 and variance σ2 = 5. what is the approximate probability that the sample ❦ ❦ ❦ ❦ exercises p-67 variance is greater than or equal to 7.44? less than or equal to 2.56? for a random sample of size a. n = 16 b. n = 30 c. n = 71 d. compare your answers to parts (a)–(c) for the approximate probability that the sample variance is greater than or equal to 7.44. explain why this tail probability is increasing or decreasing with increased sample size. e. compare your answers to parts (a)–(c) for the approximate probability that the sample variance is less than or equal to 2.56. explain why this tail probability is increasing or decreasing with increased sample size

the correct answer is

c. 4

step-by-step explanation:

the given polynomial is

the degree of the polynomial is the highest exponent which is 4.

the -4 is called the leading coefficient.

this polynomial has only one term so it is a monomial.

the correct answer is option c.

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

step-by-step explanation: