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An assembly consists of two mechanical components. Suppose that the probabilities that the first and second components meet specifications are 0.96 and 0.87. Assume that the components are independent. Determine the probability mass function of the number of components in the assembly that meet specifications. X = number of components that meet specifications. Round your answers to four decimal places (e.g. 98.7654).
General
4 months ago
According to a census, there were 61 people per square mile (this is called the population density) in a certain country in 1980. By 2000, the number of people per square mile had grown to 89 . Use this information to develop a linear equation in slope-intercept form. In developing the equation, think of 1980 as year zero. Let x be the time in years and let y be the population density. Write a linear equation in slope-intercept form to model the given information.
General
4 months ago
Harrison Water Sports has two retail outlets: Seattle and Portland. The Seattle store does 60 percent of the total sales in a year. Further analysis indicates that if a sale is made in Seattle, there is 0.40 probability this is a sale of boat accessories, while if a sale is made at the Portland store this probability is 0.20. If Harrison Water Sports knows that a boat accessory has been sold, what is the probability this sale has occurred in Seattle:
General
4 months ago
1. Owen’s parents were planning a birthday party for him. They have $20.00 to spend on goodie bags. They need to buy 6 goodie bags at $2.49 each. Will Owen’s parents have enough money to buy all 6 goodie bags? Show your work. Explain how you solved the problem using First, Next, Last model. help!!!!!!
General
4 months ago
23. A tour bus averaged 50 miles per hoursbetween two cities on the first leg ofa trip and 45 miles per hour on thereturn trip. The return trip tookhour longer. Find the distance betweenthe two cities.
General
4 months ago
Question 8_____ is the splitting of nuclei.FissionFusionDecayDenaturation
General
4 months ago
The mid point of CD is E(-1, 0). Endpoint is C(5, 2). What are the coordinates of the other endpoint
General
4 months ago
Assume a and b are nonzero rational numbers and c is an irrational number. For each of the following expressions, determine whether the result is irrational, rational, or both. Justify your answers. Part A: a(b + c) (1 point) Part B: (1 point) Part C: ab + ab2 (2 points)
General
4 months ago
A box in a supply room contains 24 compact fluorescent lightbulbs, of which 8 are rated 13-watt, 9 are rated 18-watt, and 7 are rated 23-watt. Suppose that three of these bulbs are randomly selected. (Round your answers to three decimal places.) (a) What is the probability that exactly two of the selected bulbs are rated 23-watt? (b) What is the probability that all three of the bulbs have the same rating? (c) What is the probability that one bulb of each type is selected?
General
4 months ago
Four students attempt to register online at the same time for an Introductory Statistics class that is full. Two are on the football team and two are on the basketball team. They are put on a wait list. Prior to the start of the semester, two enrolled students drop the course, so the professor randomly selects two of the four wait list students and gives them seats in the class. What is the probability that both students selected play the same sport?
General
4 months ago
The engineer, JJ, works for an electronic firm. She realizes that 4.5% of all integrated chips produced in her department are defective. She hired a consulting firm to give her advice on how to reduce the production of defective chips. The new plans were implemented. Now JJ wants to confirm that production of defectives had been reduced. How will she collect data and what statistical analysis she will do?
General
4 months ago
Problem Page A committee consisting of faculty members and students is to be formed. Every committee position has the same duties and voting rights. There are faculty members and students eligible to serve on the committee. In how many ways can the committee be formed?
General
4 months ago
A hollow metal sphere has 6 cm inner and 8cm outer radii. The surface charge densities on the exterior surface is +100 nC/m2 and -100 nC/m2 on the interior surface. (1) What are the strength and direction of the electric field at points 4cm, 8cm and 12cm from the center
General
4 months ago
Choose the best definitions of parameter and statistic. A parameter is an unknown characteristic of a group and a statistic is a known characteristic of a group. A statistic is a number that describes a population and a parameter is a number that describes a sample. A statistic is a number that describes a sample and a parameter is a number that describes a population. A statistic is a variable that describes a sample and a parameter is a variable that describes a population. A parameter is a number that describes a population. A statistic is a number that is used to estimate a parameter.
General
4 months ago
Shelley delivered 12 newspapers after 20 minutes and 36 papers after 60 minutes what is the independent variable and the dependent variable and what is the rate of exchange
General
4 months ago
The local ice skating ring charges $8 for admission Skate rental costs $5.50 per pair.On Friday night skate rentals brought in $341.How many stamps didi Judy sell that week
General
4 months ago
Item 8Solve the equation.w+3 3/8=1 5/6these are fractions find out the w.
General
4 months ago
PLZ PLZ HALP!!Match each polynomial with the appropriate explanation regarding the roots of the related polynomial equation.(A) (x+4)(x−4)[x−(2−i)][x−(2+i)](B) (x+i)(x−i)(x−2)3(x−4)(C) (x+3)(x−5)(x+2)^2(D) (x+2)2(x+1)^2(1) The related polynomial equation has a total of four roots; all four roots are real and one root has a multiplicity of 2 .(2) The related polynomial equation has a total four roots; all four roots are real and two roots have a multiplicity of 2 .(3) The related polynomial equation has a total of two real roots; both roots are real and have a multiplicity of 2 .(4) The related polynomial equation has a total of six roots; two roots are complex and the one of the remaining real roots has a multiplicity of 3 .(5) The related polynomial equation has a total of four roots; two roots are complex and two roots are real.(6) The related polynomial equation has a total of three roots; all three roots are real and one root has a multiplicity of 2 .
General
4 months ago
A merchant surveyed 500 people to determine the way they learned about an upcoming sale. The survey showed that 290 learned about the sale from the radio, 250 from television, 250 from the newspaper, 140 from radio and television, 130 from radio and newspapers, 120 from television and newspapers, and 70 from all three sources. How many people learned of the sale from radio or television but not the newspaper?
General
4 months ago
A test to determine whether a certain antibody is present is 99.1% effective. This means that the test will accurately come back negative if the antibody is not present (in the test subject) 99.1% of the time. The probability of a test coming back positive when the antibody is not present (a false positive) is 0.009. Suppose the test is given to six randomly selected people who do not have the antibody. (a) What is the probability that the test comes back negative for all six people? (b) What is the probability that the test comes back positive for at least one of the six people?
General
4 months ago
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