Math Answers

Use the standard normal probability table to find the value z for each of the following.

(a) P (0≤Z≤z) = 0.41 (b) P(Z≥z) = 0.25

(c) P (Z≤z)= 0.95 (d) P(-z≤Z≤z) = 0.88

A farmer believes that using organic fertilizer on his plants will yield greater income.hus average income from the past was php 200 000.00 per year

A.state the null and the alternative hypothesis in symbol.

B.state wether the test is directional or non directional

If a freshman is selected at random to become student assistant, what is the probability of selecting a student with an IQ between 9o and 120?

It is claimed that the mean annual salary of call center customer service representatives

is P188,584.00. A researcher randomly selected 50 call center customer service representatives. He computed the mean of their annual salaries and obtained a mean of P188,600.00.

Let f(x,y)={y^3/x^2+y^2 , 0 otherwise if (x,y) is not =(0,0) show that f is continuous but not differentiable at (0,0)

Check whether limit of the function of f(x,y)=4x^5y/x^10+3y^2 exists as (x,y) tends to (0,0).

If a random sample of size 81 is drawn from this

population, what is the probability that the mean

of this sample is larger than 53.5 inches?

Find the cylindrical coordinates of the points where the cartesian coordinates are i)(3,3,4) ii) (√5,1,2)

Express the following surfaces in spherical coordinates (i) yz=2. (ii) y^2+z^2-x^2=1

The function f(x,y)={x^2y/x^4+y^2 (x,y) is not=0 0, (x,y)=0 is not continuous at (0,0)