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In a large population, 91% of the households have cable tv. A simple random sample of 144 households is to be contacted and the sample proportion computed. What is the mean and standard deviation of the sampling distribution of the sample proportions?
General
4 months ago
Find the cdf F(x) associated with each of the following probability density functions. Sketch the graphs of f(x) and F(x). (a) f(x) = 3(1 − x)2, 0 (b) f(x)=1/x2, 1 (c) f(x) = 1/3 , 0 Also, find the median and the 25th percentile of each of these distributions
General
4 months ago
Which equation is the inverse of y = 9x2 – 4?
General
4 months ago
Jason paid $15.50 for 3 slices of pizza and 2 burgers. Susan paid $20 for 1 slice of pizza and 4 burgers. Write a system of equations and then determine the cost of each Slice of pizza and the cost of each burger.(Do Not give the equation as your answer).:Each slice of pizza cost$?:Each burger cost$?
General
4 months ago
Select the correct choices that belong in the blank for the system of equations shown below. 24x-39=165-6x+13y=-51In order to solve this system by elimination, Stacy _____by ____. Then, when she adds the equations together, the x terms will cancel out.A.)multiplies the second equation;4B.)multiplies the first equation;4C.)multiplies the second equation;-4D.)multiplies the first equation;-4
General
4 months ago
there are 15 rafts available for people to use on the adventure river ride. each raft holds 12 people. the park runs this ride 3 times each hour. how many people can ride the wild river in 1 hour if all of the rafts are used and each raft is full?
General
4 months ago
how can you recognize when a pattern in real life is linear or nonlinear?
General
4 months ago
- QUIZ DUE TODAY - HELP MUCH APPRECIATED. Jason paid $15.50 for 3 slices of pizza and 2 burgers. Susan paid $20 for 1 slice of pizza and 4 burgers. Write a system of equation and then determine the cost of each slice of pizza and the cost of each burger. - Do NOT give me the equation as your answer. ONLY the cost. -Fill in the answer for the cost.Each slice of pizza costs: $Each burger costs: $
General
4 months ago
You toss 4 coins and if you toss all heads you win $9. If you toss anything other than 4 heads you lose $1. What is the Expected Value of the game?
General
4 months ago
Mr. And Mrs. Garcia have budgeted $2800 for airplane tickets and a hotel for a family vacation. Their two children will come with them on the vacation.If each round trip airplane ticket costs $415, and the hotel costs$155 per night, how many nights can the Garcia's stay? Write an inequality.
General
4 months ago
A scientist now has exactly 4.365 liters of water in a container. There were 5 liters of water in the container, but some of the water evaporated.How much water evaporated from the container?
General
4 months ago
Enter the correct unit of measurement to complete the conversion10,000 grams equals 10 what1/5000,000 liter eqaul 2 what1 nanosecond equal one what of a what1 hectometer equal what meters1 milliampere equl one waht of an ampere1 megaton equal 1 what tonsTHANK YOU SO MUCH
General
4 months ago
What is the area of a triangle with vertices at (−4, 1) , (−7, 5) , and (0, 1) ?Enter your answer in the box.
General
4 months ago
What is the perimeter of a polygon with vertices at (3, 2) , (3, 9) , (7, 12) , (11, 9) , and (11, 2) ?Enter your answer in the box. Do not round any side lengths.
General
4 months ago
If f(x)=square root of 2-x and g(x)=x-1, then find the domain of h(x)=f(x)/g(x)
General
4 months ago
The equation of a line given two points needs to be found. Samuel claims that slope-intercept form will generate the equation and Helena claims that point-slope form will find the equation. Who is correct? Explain your reason by describing both forms.
General
4 months ago
JIMMMMMMGraph the system of inequalities presented here on your own paper, then use your graph to answer the following questions:y ≥ −3x + 3y is less than 3 over 2 times x minus 6Part A: Describe the graph of the system, including shading and the types of lines graphed. Provide a description of the solution area. (6 points)Part B: Is the point (−6, 3) included in the solution area for the system? Justify your answer mathematically. (4 points)
General
4 months ago
PLEASE HELP !!! JIM :)1. Determine whether the origin is included in the shaded region and whether the shaded region is above or below the line for the graph of the following inequality:y < two thirdsx + 2 The origin is not included in the shaded region and the shaded area is above the line. The origin is not included in the shaded region and the shaded area is below the line. The origin is included in the shaded region and the shaded area is above the line. The origin is included in the shaded region and the shaded area is below the line.
General
4 months ago
SOMEONE PLZZ HELP WITH THESE 2 PROBLEMS ASAP PLSSSSS!!! HELP NEEDED!! WILL MARK BRAINLYIST!!Cindy has 26 nickels. She is getting rolls of nickels from the bank. She has enough money to get up to 10 rolls of nickels and each roll contains 40 nickels. The bank will not give partial rolls. The function that models the number of nickels Cindy will have after leaving the bank is f(r)=40r+26, where r is the number of rolls of nickels she gets.What is the practical range?The graph shows the amount of dirt left to remove, y, with respect to number of loads of dirt, x. What is the y-intercept?What does the y-intercept represent?(Graph is attached...) Thank you in advanced!
General
4 months ago
PLZ ANSWER-Patti is using mental math to evaluate the expression (70 + 12.8 + 30)+ 6.1. She recognizes that the expression will be easier to simplify if she can combine 70 and 30 before she works with the other numbers. How do the properties of operations allow Patti to take that approach?
General
4 months ago
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