HELP ASAP!!!! Which correlation is most likely a causation? the positive correlation between the number of windows in a building and the number of steps in a building the positive correlation between the height of a person and the number of pairs of socks he owns the negative correlation between the sales of vacuum cleaners and the sales of boots in a store the negative correlation between the number of safety classes employees attend and the number of accidents in the company

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general 11 months ago 3429

Casey finds that when asked for their email address, 1/5 of her customers will share their address with her. To simulate the behavior of the next 4 customers, she writes the numbers 1, 2, 3, 4, and 5 on cards and mixes them up.She then picks 4 cards, records the results, and puts the cards back.. She repeats this experiment for a total of 20 trials. The results are shown in the table. Here, she let 1 represent someone sharing an email address and 2, 3, 4, and 5 represent someone not sharing an email address. 4121 1223 4233 3344 2434 4241 5415 3421 5214 2234 4211 1432 5532 4114 4325 4454 4523 4432 3423 1352 Using this simulation, what is the probability that, out of the next 4 customers, fewer than 2 will share their email address? Enter your answer, as a fraction in simplified form, in the box.

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general 11 months ago 3895

Sandy is helping her uncle at this coffee shop. She observes that, when ordering coffee, 13 of customers select chocolate flavoring. To simulate the behavior of the next 5 customers, she lets the number 1 represent someone ordering chocolate, and she lets the numbers 2 or 3 represent someone ordering a different flavor. She writes the numbers 1, 2, and 3 on cards and mixes them up. Sandy then picks one card, records the result, and puts the card back. She does this process four more times to represent 5 customers and to complete 1 trial of the experiment. She repeats this experiment for a total of 10 trials. The results are recorded in the table. 12323 13123 22222 23111 11322 31112 23331 11231 32332 13111 Using this simulation, what is the probability that 3 or more of the next 5 customers will order chocolate? Enter your answer, as a fraction in simplified form, in the box.

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general 11 months ago 8680

A survey finds that 40% of students ride in a car to school. Eri would like to estimate the probability that if 3 students were randomly selected, only 1 rides in a car. To simulate this probability, she lets the numbers 0, 1, 2, and 3 represent a student who rides in a car to school and then 4, 5, 6, 7, 8, and 9 represent a student who does not ride in a car to school. She then has a computer randomly select 3 numbers. She repeats this process for 20 trials. The results of these trials are shown in the table. 468 380 120 220 553 945 935 607 473 490 074 981 692 518 408 954 943 389 594 569 Based on this simulation, what is the estimated probability that only 1 of 3 randomly selected students rides in a car to school? Enter your answer, as a decimal, in the box.

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general 11 months ago 4456

The tallest escalator on the London Underground system is at angel station. It rises to a height of 90 feet over a horizontal distance of 200 feet. Let e(x) be the height of one of the escalator's steps as a function of the horizontal distance from the bottom step.The following table shows the coordinates of a linear function.x ƒ(x)-5 -1 1/9-4 -8/90 02 4/93 2/3Find and compare the rate of change of e(x) and ƒ(x). Which function has the greater rate of change and by how much?

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general 11 months ago 4039

Place the indicated product in the proper location on the grid.1. (a + b)(a 2 - ab + b 2)2. (1 - 7x)(1 + 9x)3. (x + y + 3)(x + y - 4)4. (a - b)(a 2 + ab + b 2)5. (m 3 n + 8)(m 3 n - 5)6. [4 - (3c - 1)][6 - ( 3c - 1)]7. (ab - 9)(ab + 8)8. (a + b - c)(a + b + c)9. (a + 3)(a - 2)10. (3m 3 - y)(3m 3 - y)11. (2x - 3y)(4x - y)12. Place the indicated product in the proper location on the grid. Write your answer in descending powers of x.(x 2 + 2x - 1)(x 2 + 2x + 5)13. Which of the following polynomials corresponds to the product of the multivariate polynomials 4x - 3y + 5 and x + 2y -3?5x - y + 24x 2 - 6y 2 - 154x 2 + 8xy - 12x - 3y + 54x 2 - 6y 2 + 5xy - 7x + 19y - 15

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general 11 months ago 9870

Drake wants to save $750 so that he can take a class on computer analysis for cars. The class is being held on various dates over the next several months. Drake is planning to take the class 6 weeks from now, so he plans to save $125 each week. Unfortunately, Drake had to take out a little money from his savings in the 3rd week. After 4 weeks, Drake has $470. He knows that he must adjust his plan in order to meet his goal. Drake came up with the following options: Option A: Stay with saving the original amount each week but take the class a week later than originally planned. Option B: Increase the amount of money he saves each week by $15 from his original plan. Which of the following is a true statement? a. Only option A will allow him to meet his goal. b. Only option B will allow him to meet his goal. c. Both options A and B will allow him to meet his goal. d. Neither option A nor option B will allow him to meet his goal.

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general 11 months ago 7646