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MATH SOLVE
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A university found that 30% of its students withdraw without completing the introductory statistics course. Assume that 20 students registered for the course. Compute the probability that 2 or fewer will withdraw (to 4 decimals). Compute the probability that exactly 4 will withdraw (to 4 decimals). Compute the probability that more than 3 will withdraw (to 4 decimals). Compute the expected number of withdrawals.
General
2 months ago
James purchases a property for $150,000 in 2015. In the first year of ownership the capital appreciation of the property (how much its value increases by per annum) is 4%. In year 2, the housing market suffers a crash and the house experiences a capital depreciation of 6%. Calculate the value of the property, to the nearest $1,000, at the end of year 2. Round your answer to the nearest $1,000.
General
2 months ago
Last year, sales at Company X were 10% greater in February than in January, 15% less in March than in Feb, 20% greater in April than in March, 10% less in May than in April, and 5% greater in June than in May. In which month were sales closest to Jan?a. Febb. Marc. Aprd. Maye. June
General
2 months ago
Given the functions f(x) = 3x2, g(x) = x2 - 4x + 5, and h(x) = -2x2 + 4x + 1, rank them from least to greatest based on their axis of symmetry. f(x), g(x), h(x)f(x), h(x), g(x)g(x), h(x), f(x)g(x), f(x), h(x)
General
2 months ago
A rectangular parcel of land has an area of 3,000 ft2. A diagonal between opposite corners is measured to be 10 ft longer than one side of the parcel. What are the dimensions of the land, correct to the nearest foot? ft (smaller value) by ft (larger value)
General
2 months ago
The diameter of a white blood cell under magnification appears to be 0.3 centimeters. What is the diameter of the white blood cell in millimeters?
General
2 months ago
12. The geographic grid apportions the globe into hemispheres of 180 lines of longitude. Based on your knowledge of basic geometry, what portion of a sphere does 180 degrees equal? __________________ The grid also defines so-called "central meridians" centered on every 15 degrees of longitude. How many central meridians would there be for a complete sphere? ________________________ Compare this answer to the number of hours in a day. How does it compare?
General
2 months ago
7:( 4/11 m)=56:3.2 solve.
General
2 months ago
A group of 5 students was asked, "How many hours did you watch television last week?" Here are their responses.5, 5, 5, 4, 17Find the mean number of hours for these students. If necessary, round your answer to the nearest tenth.
General
2 months ago
Consider the graph shown.What is the slope of the graph?Write an equation for the line.PLEASE HELP I WILL MARK YOU BRAINLEST
General
2 months ago
King Kong stands on the edge of the roof of a 62 foot high building. You poke your head out of a manhole and measure the angles of elevation to the top of King Kong's head and to his feet as 55 degrees and 53.1 degrees respectively.How far is your manhole from the building?____ feetHow tall is King Kong?____ feet
General
2 months ago
The purpose of statistical inference is to provide information about the _____. a. population based upon information contained in the sample b. population based upon information contained in the population c. sample based upon information contained in the population d. mean of the sample based upon the mean of the population
General
2 months ago
The student union wants to negotiate a subsidized bus pass with your school's administration. They have polled 270 students as to whether they support this proposal, which would add a small fee to their tuition since both the college and the students would share the cost. The union found that opinions were evenly split: 50% of students were in favor of the proposal, and the rest were opposed. The margin of error for their finding at the 90% level of confidence is ± _____ %.
General
2 months ago
PLEASE HELP! Which of these is a function!
General
2 months ago
Will mark brainliest!!! Two trains leave towns 663 kilometers apart at the same time and travel toward each other. One train travels 19 km h slower than the other. If they meet in 3 hours, what is the rate of each train?
General
2 months ago
A spotlight on a 3.0 m stand shines on the surface of a swimming pool. The beam of light hits the water at a point 7.0 m away from the base of the stand. Calculate the angle the beam makes with the pool surface.
General
2 months ago
1. The quality control manager at a light-bulb factory needs to estimate the mean life of a new type of light-bulb. The population standard deviation is assumed to be 60 hours. A random sample of 32 light-bulbs shows a sample mean life of 490 hours. Construct and explain a 95% confidence interval estimate of the population mean life of the new light-bulb.
General
2 months ago
Write the point-slope form of the equation of the line through point (6, -2) that is perpendicular to the line y=2x-3
General
2 months ago
Consider the following region R and the vector field F. a. Compute the two-dimensional curl of the vector field. b. Evaluate both integrals in Green's Theorem and check for consistency. Bold Upper F equals left angle negative x comma negative y right angle; Upper R equals StartSet (x comma y ): x squared plus y squared less than or equals 5 EndSet a. The two-dimensional curl is 0. (Type an exact answer.) b. Set up the integral over the region R. Write the integral using polar coordinates, with r as the radius and theta as the angle. Integral from 0 to nothing Integral from 0 to nothing (nothing )r font size decreased by 3 dr font size decreased by 3 d theta (Type exact answers.)
General
2 months ago
Researchers are studying the yield of a crop in two locations. The researchers are going to compute independent 90% confidence intervals for the mean yield at each location. What is the probability that at least one of the intervals will cover the true mean yields at their location?
General
2 months ago
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