# Richelle

Most popular questions and responses by Richelle
1. ## statistics

A recent survey showed that among 675 randomly selected subjects who completed 4 years of college, 138 smoke and 537 do not smoke. Determine a 95% confidence interval for the true proportion of the given population that smokes.

2. ## mathematics

What is the solution for this? The surface area of a sphere varies in direct proportion to the square of its radius. If a sphere of radius 6cm has a surface area of 452 square cm, find, to the nearest mm, the radius of a spherewith the surface area 1000

3. ## Pre calc

A farmer with 2000 meters of fencing wants to enclose a rectangular field that borders a barn. If the farner does not fence the side along the barn, what is the largest area that can be enclosed?

4. ## Statistics

College officials want to estimate the percentage of students who carry a gun, knife, or other such weapon. How many randomly selected students must be surveyed in order to be 94% confident that the sample percentage has a margin of error of 2 percentage

5. ## Math

What is the smallest 5 digit even number that can be formed with the digit 091 and 6

6. ## COM 155

Write 2 paragraphs about how interest rates affect our purchasing descisions. Identify the topic sentence by underlining it. Interest rates is the price that the lender sets for the borrower to pay as a fee to borrow money. Depending on whether or not

7. ## algera 1

lucy makes and sells photo albums her monthly expenses are 600\$ plus 2\$ for each album she sells. her income for each album sold is 10\$ the inequality belowcan be used to find the least number of albums lucy should see so that her income is greater than