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Three students work independently on a homework problem.The probability that the first student solves the problem is 0.95.The probability that the second student solves the problem is 0.85.The probability that the third student solves the problem is 0.80.a. What is the probability that all are able to solve the problem?b. What is the probability that the first student solves the problem and the other two students do not?c. What is the probability that none of the three students solves the problem?Can you help me understand how to understand probability word problems..
General
4 months ago
Mr. Howard is a student teacher at the local junior high. His first‐period class of 40 students averaged 96% on a recent test. His second‐period class of 20 students averaged 90% on the same test. What was the combined average for both classes?
General
4 months ago
Question 7 A number cube with faces labeled from 1 to 6 will be rolled once. The number rolled will be recorded as the outcome. Give the sample space describing all possible outcomes. Then give all of the outcomes for the event of rolling an odd number. If there is more than one element in the set, separate them with commas.
General
4 months ago
Giorgio offers the person who purchases an 8-ounce bottle of Allure two free gifts, chosen from the following: an umbrella, a 1-ounce bottle of Midnight, a feminine shaving kit, a raincoat, or a pair of rain boots. If you purchased Allure, what is the probability you randomly selected an umbrella and a shaving kit in that order? a. 0.20b. 0.00 c. 0.05 d. 1.00
General
4 months ago
A factory has three types of machines, each of which works at its own constant rate. If 7 Machine As and 11 Machine Bs can produce 250 widgets per hour, and if 8 Machine As and 22 Machine Cs can produce 600 widgets per hour, how many widgets could one machine A, one Machine B, and one Machine C produce in one 8-hour day?A. 400B. 475C. 550D. 625E. 700
General
4 months ago
A study conducted several years ago reported that 19 percent of public accountants changed companies within 5 years. The American Institute of CPAs would like to update the study. They would like to estimate the population proportion of public accountants who changed companies within 5 years with a margin of error of 5% and a 90% level of confidence. To update this study, the files of how many public accountants should be studied?How many public accountants should be contacted if no previous estimates of the population proportion are available?
General
4 months ago
Let F be the event that a customer is dissatisfied with the food at a restaurant and let S be the event that a customer is dissatisfied with the service. If P(F) = .15, P(S) = .40, and P(F ∩ S) = .10, what is the probability that a customer is dissatisfied with either the service or the food? a. .65 b. .55 c. .45 d. .10
General
4 months ago
What are the answers to these angle questions?
General
4 months ago
Write an equation in standard form for the line that passes through the given points (0,-3) and (7,0)
General
4 months ago
Drew’s score on a math text was 92.He could earn an extra 1/2 point for each incorrect problem he corrected. Drew corrected 3 problems. On which number line does Point S best represent his new score?
General
4 months ago
the number below follow a pattern 300 30 3 0.3 part a answer is 0.03 0.003part b what is the relationship between the terms in the pattern?
General
4 months ago
10ac-x/11=-3 solve for a
General
4 months ago
Determine the common ratio and find the next three terms of the geometric sequence.10, 2, 0.4, ...a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032
General
4 months ago
Hello! I'm in seventh grade and I just started Algebra and I do not know what "simplifying the expression" means. Could someone please explain it? Thanks in advance.
General
4 months ago
your dog's water bowl is 3/4 full. After taking a drink, the water bowl is 1/3 full. what fraction of the bowl did your dog drink?
General
4 months ago
Amaya's test scores in Algebra 1 are 78 and 91. She has one more test left and wants to earn a B for the course, which is from 80-89 inclusive. Write a compound inequality to represent the situation
General
4 months ago
Who sets the price in a monopolistic competition?
General
4 months ago
Relationship B has a greater rate than Relationship A. This graph represents Relationship A. Which equations could represent Relationship B?Select each correct answer. a) y = 3/4xb) y = 0.6xc) y = 1/4xd) y = 2/3x
General
4 months ago
the value of the 7 in 507,264 is 10 times the value of the 7 in which number?
General
4 months ago
Tia cut a 4 meter 8 centimeter wire into 10 equal pieces. Marta cut a 540 centimeter wire into 9 equal pieces. how much longer is one of Marta's wires than one of Tia's?
General
4 months ago
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