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Assume that the Poisson distribution applies and that the mean number of aircraft accidents is 9 per month. Find P(0), the probability that in a month, there will be no aircraft accidents. Is it unlikely to have a month with no aircraft accidents?
General
3 months ago
The box plot represents a data set . What is the range of the middle 50% of the data?
General
3 months ago
What are the coordinates of the midpoint of the line segment with endpoints 2,-5) and (8,3)
General
3 months ago
g Use this to find the equation of the tangent line to the parabola y = 2 x 2 − 7 x + 6 at the point ( 4 , 10 ) . The equation of this tangent line can be written in the form y = m x + b where m is: 9 Correct and where b is: Incorrect LicensePoints possible: 1 Unlimited attempts. Score on last attempt: (0.33, 0.33, 0), Score in gradebook: (0.33, 0.33, 0), Out of: (0.33, 0.33, 0.34) Message instructor about this question
General
3 months ago
Nethan made 8 rose bouquets and 6 daffodil bouquets. Nethan only has enough flowers to make at most 20 rose or daffodil bouquets total. Let x represent the number of more rose bouquets and y represent the number of more daffodil bouquets that Nethan can make. Show the relationship between x and y graphically.
General
3 months ago
A triangle has side lengths measuring 3x cm, 7x cm, and h cm. Which expression describes the possible values of h, in cm?4x < < 10x10xon = 4xh = 10x
General
3 months ago
The rectangle below has an area of 12y^2+21y^5 The width of the rectangle is equal to the greatest common monomial factor of 12y^2 and 21y^5 What is the length and width of the rectangle
General
3 months ago
The weight of trucks traveling on a particular section of I-475 have a population mean of 15.8 tons and a population standard deviation of 4.2 tons. What is the probability a state highway inspector could select a sample of 49 trucks and find the sample mean to be 14.3 tons or less
General
3 months ago
i need help ASAP!What is the mean number of vehicles owned by the families in Class B? Explain or show how you arrived at your answer.
General
3 months ago
An integral equation is an equation that contains an unknown function y(x) and an integral that involves y(x). Solve the given integral equation. [Hint: Use an initial condition obtained from the integral equation.] y(x) = 36 + x 2t y(t) dt 0
General
3 months ago
A rectangular lawn measures 80 ft by 120 ft. Part of the lawn is torn up to install a sidewalk of uniform width around it. The area of the new lawn is 3200 ft2. How wide is the sidewalk? The sidewalk is nothing ▼ ft squared ft cubed ft wide.
General
3 months ago
In one month, Mikhail’s Furnishings can make 160 carpets or 160 quilts, while Dominique’s Parlor can make 120 carpets or 200 quilts. Currently, Mikhail’s is making 80 carpets and 80 quilts per month while Dominique’s is making 60 carpets and 100 quilts. If from now on Mikhail’s starts making nothing but carpets and Dominique’s makes nothing but quilts, and the two shops trade 90 quilts from Dominique’s for 70 carpets from Mikhail’s every month, what will be each shop’s gain from trade? Answer the question by matching gains to shop.
General
3 months ago
Foot locker uses sales per square foot as a meaure of store productivity. sales are currently running at an annual rate of $406 per square foot. you have been asked by management to conduct a study of a sample of 64 foot locker stores.Assume the standard deviate in annual sales per square foot for the population of all 3400 Foot locker stores is $80.a.) show the sampling distribution of x bar, the sample mean annual sales per square foot for a sample of 64 Foot locker stores.b.)What is the probability that the sample mean will be within $15 of the population mean?c.) Suppose you find a sample mean of $380. what is the probability of finding a sample mean of $380 or less? would you consider such a sample to be unusually low performing group of stores?
General
3 months ago
The revenue when selling x items of a certain product is ????(x) = 40x − x^2. The cost of producing x items is C(x) = 2x^2 + 4x + 10. Find the number of items you should sell to maximize the profit? Also determine the maximum profit. (Hint: Profit is Revenue minus Cost, so P(x) = R(x) – C(x))
General
3 months ago
Use the formula to determine the area of squares with side lengths of 3 cm, 10.5 cm, and π cm.
General
3 months ago
You and your mom are entering a drawing with three different prizes. The prizes are awarded at random. If a total of 8 people enter the drawing in how many ways can you win first prize and your mom win second
General
3 months ago
We have two urns. The first urn contains two balls labeled 1 and 2. The second urn contains three balls labeled 3, 4, and 5. We choose one of the two urns at random with equal probability and then sample one ball, uniformly at random, from the chosen urn. What is the probability that we picked the ball labeled 5
General
3 months ago
Assume a binomial probability distribution with n=55 and π=0.34 . Compute the following: (Round all your z values to 2 decimal places.) The mean and standard deviation of the random variable. (Round your "σ" to 4 decimal places and mean to 1 decimal place.) The probability that X is 22 or more. (Use the rounded values found above. Round your answer to 4 decimal places.) The probability that X is 14 or less. (Use the rounded values found above. Round your answer to 4 decimal places.)
General
3 months ago
Many egg producers keep chickens in small cages that do not allow the chickens to move. Some people believe that this is unhealthy, so they buy eggs from chickens that are not caged 24-hours a day. These are sometimes called “free-range” chickens. The United States Department of Agriculture (USDA) allows chickens to be called free-range as long as the chickens spend some of their time outside. The European Union (EU), however, has several additional restrictions. One of these is that the farmers must provide enough outside area so that if all the chickens were outside, the density of chickens would be no more than 0.25 chickens/sq meter. (Wikipedia, 2014). Make sure that you fill in each answer area before checking "How Did I Do?". How many square meters does the EU require for one chicken? square meters A farmer in the United States wants to meet the EU guidelines. She measures her area in square yards (1 sq meter =1.196 sq yards). How many square yards does she need for 1,100 chickens? (i) 301.1 square yards (ii) 4,400.0 square yards (iii) 4,812.2 square yards (iv) 5,262.4 square yards
General
3 months ago
Please help! Maths question involving geometry and factorising.
General
3 months ago
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