# Math homework help

## Math 130

look at the attachment

## calc 3 Homework

calculus 3 homework

the due is on thursday

http://mathweb1.sandbox.csun.edu/moodle1/course/view.php?id=376

this is the website

username: dka74277

password: csun123$

chapter 16 from section 16.2 to 16.7

also chapter 13 section 13.4 do problem 2

## What are the different methods of random sampling? Explain them briefly

Answer the following each question is of equal value:

1. Give the following two sets of data:

X: 4, 5, 9, 3, 7,9,12,15

Y: 12, 10, 9, 7, 7, 5, 4, 2

Find the correlation coefficient between X and Y.

2. Given the following sample data

21, 30, 15, 17, 18, 25, 30, 33, 17

a. Find the mean, median, and mode.

b. Compute the variance and standard deviation of the data set

3. Given that : P(A)=0.33; P(B)=0.55; P(A&B)=0.00

Find

a). P(Ac) b. P (A or B) c. P (A & B)c

## Inferential Statistics and Findings

**Using **the research question and two variables your learning team developed for the Week 2 Business Research Project Part 1 assignment, create a no more than 350-word inferential statistics (hypothesis test). Include: