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Suppose there is a 27.5 % probability that a randomly selected person aged 25 years or older is a jogger.jogger. In addition, there is a 13.1% probability that a randomly selected person aged 25 years or older is male commamale, given that he or she jogs.jogs. What is the probability that a randomly selected person aged 25 years or older is malemale and jogs question markjogs? Would it be unusual to randomly select a person aged 25 years or older who is malemale and jogs question mark?
General
2 months ago
ANSWER FAST PLEASE! Write the trigonometric equation for the function with a period of 6. The function has a maximum of 3 at x = 2 and a low point of –1.
General
2 months ago
A clothing designer uses $3 worth of fabric for each shirt she makes, and she sells each shirt for $15. She also spends $44 on supplies needed to make the shirts. How many shirts does she need to sell to earn a profit of $100
General
2 months ago
The line width used for semiconductor manufacturing is assumed to be normally distributed with a mean of 0.5 micrometer and a standard deviation of 0.05 micrometer. Round your answers to 3 decimal places (e.g. 98.765). What is the probability that a line width is greater than 0.62 micrometer?
General
2 months ago
A group of veterinarians at a major veterinary hospital was interested in investigating a possible link between enteroliths, stones that form in the colon of horses, and diet. They decided to conduct a survey of feeding practices of horses admitted to the veterinary hospital. To obtain a random sample of the 5000 horses that had been admitted over the last 10 years to the hospital, they sequentially assigned numbers starting with 1 to the horses in order of admittance. They then picked a random starting point and decided to sample every 100th horse to get a random sample of 50 horses. This procedure corresponds to a:a. simple random sample because all horses have the same chance of being picked. b. systematic sample because not all sample are possible.c. stratified random sample because the procedure is obviously not a simple random sample.d. None of the answer choices is correct.
General
2 months ago
An interior decorator must furnish two offices. Each office must have a desk, a chair, a file cabinet and 2 bookcases. At the local office furniture store there are 6 models of desks, 8 models of chairs, 4 models of file cabinets and 10 models of bookcases, all of which are compatible. (Any desk can be matched with any chair, etc.) How many choices does the decorator have if he wants to select two desks, two chairs, two file cabinets and four bookcases if he doesn't want to select more than one of any model?
General
2 months ago
What is the rational number equivalent to __3.24?
General
2 months ago
The "feasible region" has vertices (4,5), (4,6), (7,4), and (3,6). If the "objective function" that you are trying to minimize is C = 4x + 2y, what is the minimum value? Write the minimum value, not the point.
General
2 months ago
Crew B earns $315 after 3 hours, $525 after 5 hours, and $735 after 7 hours of work. Explain wheter or not crew B's data shows a proportional relationship. If the data are proportional, identify the constant of proportionality.
General
2 months ago
A Bernoulli differential equation is one of the form(dy/dx)=P(x)y=Q(x)y^n (*)Observe that, if n=0 or 1, the Bernoulli equation is linear. For other values of n, the substitution u=y^(1-n) transforms the Bernoulli equation into the linear equation(du/dx)+(1-n)P(x)u=(1-n)Q(x)Use the appropriate substituion to solve the equationxy'+y=3xy^2and find the solution that satisfies y(1)=-8
General
2 months ago
A car drove 330 miles in 6 hours at a constant rate. If the car’s rate of travel slows by 10 mph, what is the new, slower rate of travel?
General
2 months ago
Identify the number and type of solutions for the equation x^2 − 7x + 3 = 01 real 2 real 1 nonreal complex 2 nonreal complex
General
2 months ago
A 45N girl sits on a 8N bench. How much work is done on the bench? Remember that work = force × distance. What is the work?
General
2 months ago
A family used 9.8 gallons of gasoline to drive 275.5 miles.To determine how far they drove using one gallon of gasoline can they use an estimate or is an exact answer required? Explain
General
2 months ago
In quadrilateral abcd the measures of the angles are represented by measure angle a=6x-2, measure angle b=6x+5, measure angle c=8x+2, and measure angle d=3x+10. Find the measure angle c
General
2 months ago
In a survey in a certain year of married couples with earnings, 99% of all husbands were employed. Of all employed husbands, 77% of their wives were also employed. Noting that either the husband or wife in a couple with earnings had to be employed, find the probability that the husband of an employed woman was also employed. (Round your answer to four decimal places.)
General
2 months ago
As discussed in Exercise 6.10, the General Social Survey reported a sample where about 61% of US residents thought marijuana should be made legal. If we wanted to limit the margin of error of a 95% confidence interval to 2%, about how many Americans would we need to survey?
General
2 months ago
We are testing H0: µ ≤ 42; versus HA: µ > 42. When Picture = 45, s = 1.2, and n = 15, at α = .01 we do not reject the null hypothesis. (Assume that the population from which the sample is selected is normally distributed.)TrueFalse
General
2 months ago
Suppose the time a child spends waiting at for the bus as a school bus stop is exponentially distributed with mean 6 minutes. Determine the probability that the child must wait between 4 and 5 minutes on the bus on a given morning.
General
2 months ago
A toy manufacturer claims that the mean time that its top-selling toy captures children's attention is at least 45 minutes. Suppose that we doubt this claim and we carry out a hypothesis test to see if we can refute the claim. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test.
General
2 months ago
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