The soils lab has received a shipment of 20 sieves, of which 8 are No. 4...
The soils lab has received a shipment of 20 sieves, of which 8 are No. 4 and 12 are No. 10. If 7 of these 20 sieves are selected at random to be used by students for soils analysis, what is the probability that exactly 2 of those selected are the No. 4 sieve (and the other 5 are the No. 10 sieve?)
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The soils lab has received a shipment of 20 sieves, of which 8
are No. 4...
(20 pts) A class has three sections. Section has 70 students, 14 of whom received an...
(20 pts) A class has three sections. Section has 70 students, 14 of whom received an A on Exam 1. Section 2 has 50 students, 8 of whom received an A on Exam 1. Section 3 has 40 students, 6 of whom received an A on Exam 1. A student is randomly selected from the class. (a) What is the probability the student was in Section 1? (b) What is the probability that the student received an A on Exam...
13 12 11 10 8 6 7 F 4 5 r3 2 A university class has...
13 12 11 10 8 6 7 F 4 5 r3 2 A university class has 24 students: 8 are psychology majors, 3 are nursing majors, and 13 are accounting majors. The professor is planning to select two of the students for a demonstration. The first student will be selected at random, and then the second student will be selected at random from the remaining students. What is the probability that the first student selected is a nursing major and...
Case #4 • A semen analysis is received by the lab. For infertility evaluation. • Results...
Case #4 • A semen analysis is received by the lab. For infertility evaluation. • Results of the routine analysis are: Volume 3 ml Viscosity normal рн Count Motility Morphology 7.8 20 million 30% in 3hr 10% abnormal forms Questions case #4 • 1- Which of these results are of concern in an infertility workup? 2- State two additional tests that would be helpful in evaluating this patient and explain the information they would provide? • 3- If clumping of...
An electronics store has received a shipment of 20 table radios that have connections for an...
An electronics store has received a shipment of 20 table radios that have connections for an iPod or iPhone. Ten of these have two slots (so they can accommodate both devices), and the other ten have a single slot. Suppose that seven of the 20 radios are randomly selected to be stored under a shelf where the radios are displayed, and the remaining ones are placed in a storeroom. Let X = the number among the radios stored under the...
the class is EGEN 350 pleas i need the answers of questions 7,8and 9 In a...
the class is EGEN 350 pleas i need the answers of questions
7,8and 9
In a clinical study, volunteers are tested for a gene that has been found to increase the risk for a disease. The probability that a person carries the gene is 0.001. a. (2pts) What is the probability that 40 people need to be tested to detect one with the gene? 7. b. (2pts) What is the expected number of people to test to detect one with...
An electronics store has received a shipment of 20 table radios that have connections for an iPod or iPhone.
An electronics store has received a shipment of 20 table radios that have connections for an iPod or iPhone. Ten of these have two slots (so they can accommodate both devices), and the other ten have a single slot. Suppose that eight of the 20 radios are randomly selected to be stored under a shelf where the radios are displayed, and the remaining that have two slots ones are placed in a storeroom. Let X = the number among the...
A radio station runs a promotion at an auto show with a money box with 15 $25 tickets, 11 $5 tickets, and 12 31 tickets. The box contains an additional 20 "dummy" tickets with no value. T...
A radio station runs a promotion at an auto show with a money box with 15 $25 tickets, 11 $5 tickets, and 12 31 tickets. The box contains an additional 20 "dummy" tickets with no value. Three tickets are randomly drawn. Find the probability that all three tickets have no value. 3. The probability that all three tickets drawn have no money value is Round to four decimal places as needed.) 4. If you are dealt 3 cards from a...
Questions 4- 7 refer to the following. Our Eco 320 course consists of sophomores and juniors. Ten percent of the...
Questions 4- 7 refer to the following. Our Eco 320 course consists of sophomores and juniors. Ten percent of the students who take Econ 320 fail the course. Among those students who pass, 25 % are sophomores. 7.5% of the students are juniors who failed the class. Of those who pass, 20 % will receive an A for the course. What is the probability that a randomly selected student will be a junior? (10 points) 4. 225 25 .675 70...
QUESTION 4 in a survey at a local college 10 of students reported that they do...
QUESTION 4 in a survey at a local college 10 of students reported that they do not own a mobile device with internet capabilities. If 20 students are selected at random find the probability that exactly 5 students dont own a mobile device with internet capabilities 0.01 0.05 0.00 0.15
20. A class of 40 students takes students are exam es a statistics exam. The results...
20. A class of 40 students takes students are exam es a statistics exam. The results are shown in the table below. Three selected at random. What is the probability for the following TABLE FOR EXERCISE 52 Letter grade Number of students 10 12 6 (a) all three students received an A? (b) all three students received a C or better? (c) all three students received a D or an F? (d) all three students received a B or a...
(20 pts) A class has three sections. Section has 70 students, 14 of whom received an A on Exam 1. Section 2 has 50 students, 8 of whom received an A on Exam 1. Section 3 has 40 students, 6 of whom received an A on Exam 1. A student is randomly selected from the class. (a) What is the probability the student was in Section 1? (b) What is the probability that the student received an A on Exam...
13 12 11 10 8 6 7 F 4 5 r3 2 A university class has 24 students: 8 are psychology majors, 3 are nursing majors, and 13 are accounting majors. The professor is planning to select two of the students for a demonstration. The first student will be selected at random, and then the second student will be selected at random from the remaining students. What is the probability that the first student selected is a nursing major and...
Case #4 • A semen analysis is received by the lab. For infertility evaluation. • Results of the routine analysis are: Volume 3 ml Viscosity normal рн Count Motility Morphology 7.8 20 million 30% in 3hr 10% abnormal forms Questions case #4 • 1- Which of these results are of concern in an infertility workup? 2- State two additional tests that would be helpful in evaluating this patient and explain the information they would provide? • 3- If clumping of...
the class is EGEN 350 pleas i need the answers of questions
7,8and 9
In a clinical study, volunteers are tested for a gene that has been found to increase the risk for a disease. The probability that a person carries the gene is 0.001. a. (2pts) What is the probability that 40 people need to be tested to detect one with the gene? 7. b. (2pts) What is the expected number of people to test to detect one with...
An electronics store has received a shipment of 20 table radios that have connections for an iPod or iPhone. Ten of these have two slots (so they can accommodate both devices), and the other ten have a single slot. Suppose that eight of the 20 radios are randomly selected to be stored under a shelf where the radios are displayed, and the remaining that have two slots ones are placed in a storeroom. Let X = the number among the...
A radio station runs a promotion at an auto show with a money box with 15 $25 tickets, 11 $5 tickets, and 12 31 tickets. The box contains an additional 20 "dummy" tickets with no value. Three tickets are randomly drawn. Find the probability that all three tickets have no value. 3. The probability that all three tickets drawn have no money value is Round to four decimal places as needed.) 4. If you are dealt 3 cards from a...
Questions 4- 7 refer to the following. Our Eco 320 course consists of sophomores and juniors. Ten percent of the students who take Econ 320 fail the course. Among those students who pass, 25 % are sophomores. 7.5% of the students are juniors who failed the class. Of those who pass, 20 % will receive an A for the course. What is the probability that a randomly selected student will be a junior? (10 points) 4. 225 25 .675 70...
QUESTION 4 in a survey at a local college 10 of students reported that they do not own a mobile device with internet capabilities. If 20 students are selected at random find the probability that exactly 5 students dont own a mobile device with internet capabilities 0.01 0.05 0.00 0.15
20. A class of 40 students takes students are exam es a statistics exam. The results are shown in the table below. Three selected at random. What is the probability for the following TABLE FOR EXERCISE 52 Letter grade Number of students 10 12 6 (a) all three students received an A? (b) all three students received a C or better? (c) all three students received a D or an F? (d) all three students received a B or a...
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