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It is known that time spent partying per month by Kent State students is normal with...
Question 13 4 pts Assume the amount of time statistics students spent studying for the Math...
Question 13 4 pts Assume the amount of time statistics students spent studying for the Math 10 final exam is exponentially distributed with a mean of 4.2 hours. The probability that a student studied between 3 and 5 hours is O 0.4762 O 0.3789 O 0.1855 O 0.6211 Question 14 4 pts In October 2003 the mean sale price of a single family home in Santa Clara County was $683,008. We are interested in determining whether the prices in Cupertino...
4. One flaw in attendance mechanisms is that UC Merced students work jobs to make wages....
4. One flaw in attendance mechanisms is that UC Merced students work jobs to make wages. Suppose that there is a student whose job has a time conflict with our course, and it is tough to predict when we will see that student the next time. So far this semester, that student has a 20.59% attendance score. What is the probability that we will observe 3 absences and then observe the student in class on the fourth lecture. 5. According...
Question 4: In many American families, both parents work outside the home, while children spend time...
Question 4: In many American families, both parents work outside the home, while children spend time at daycare centers or are cared for by other relatives. The mean amount of time fathers spend with their child(ren) 0-6 years old per day is 1.22 hours. Suppose this time distribution is approximately normal with standard deviation 0.60 hours, and suppose a father with a child 0-6 years old is randomly selected. a. What is the probability that the father spends at least...
1. The average amount parents and children spent per child on back-to-school clothes in Autumn 2010...
1. The average amount parents and children spent per child on back-to-school clothes in Autumn 2010 was $527. Assume the standard deviation is $160 and that the amount spent is normally distributed. What is the probability that the amount spent on a randomly selected child is more than $700? (Round to four decimal places) What is the probability that the amount spent on a randomly selected child is less than $100? (Round to four decimal places) What is the probability...
Problem What is normal? What makes normal curves different? If you flip 10 coins 1,024 times,...
Problem What is normal? What makes normal curves different? If you flip 10 coins 1,024 times, what is the total number of times you will get heads? Let's first focus on the theoretical probabilities. The table below shc the expected values and theoretical probabilities obtained. Expected frequency value out of 1,024 Theoretical Number of heads Percent likelihood probability 1 0 1 1024 10 1 10 1024 45 2 45 1024 120 3 120 1024 210 4 210 1024 252 5...
survey is carried out to study the number of hours, X, per day spent on using...
survey is carried out to study the number of hours, X, per day spent on using the Internet by the customers of an Internet Service Provider (ISP). Responses from 15 randomly selected customers give the following data: 3 2 5 6 1 5 3 4 6 2 4 5 6 5 1 (a) Find out the five‐number summary and sketch a boxplot. Describe the distribution shape. (b) Suppose a selected customer is found to spend at most 5 hours...
1. The amount of time spent by North American adults watching television per day is normally...
1. The amount of time spent by North American adults watching television per day is normally distributed with a mean of 6 hours and a standard deviation of 1.5 hours. [10 Marksl a. What is the probability that a randomly selected North American adult watches television for more than 7 hours per day? 14 Marks] b. What is the probability that the average time watching television by a random sample of five North American adults is more than 7 hours?...
(2) What is the sample space you obtain if a fair coin and a die are...
(2) What is the sample space you obtain if a fair coin and a die are tossed? (3) Suppose there is a machine which randomly selects two digits from a collection of , 2, a. What are the sample points contained in the event that the sum of the two digits b. What are the sample points contained in the event that the absolute difference (4) Suppose that vehicles taking a particular freeway exit can turn right (R), turn left...
The following table shows the percentage of on-time arrivals, the number of mishandled baggage reports per...
The following table shows the percentage of on-time arrivals, the number of mishandled baggage reports per 1,000 passengers, and the number of customer complaints per 1,000 passengers for 10 airlines. Arrivals On-Time per 1,000 Passengers per 1.000 Passengers Airline Airline 1 83.3 0.88 1.57 Airline 2 9.3 1.86 0.86 Airline 3 87.3 1.67 0.99 86.3 2.12 0.75 Airline 4 Airline 5 87.5 2.89 0.47 Airline 6 77.7 2.29 1.07 Airline 7 3.19 83.1 0.24 Airline 8 2.10 86.3 1.81 Airline...
I. At a certain school, 60% of the students wear neither a ring nor a necklace,...
I. At a certain school, 60% of the students wear neither a ring nor a necklace, 20% wear a ring, 30% wear a necklace. Compute the probability that a randomly selected student wears (a) a ring or a necklace; (b) a ring and a necklace 2. A school offers three language classes: Spanish (S), French (F), and German (G). There are 100 students total, of which 28 take S. 26 take F, 16 take G, 12 take both S and...
Question 13 4 pts Assume the amount of time statistics students spent studying for the Math 10 final exam is exponentially distributed with a mean of 4.2 hours. The probability that a student studied between 3 and 5 hours is O 0.4762 O 0.3789 O 0.1855 O 0.6211 Question 14 4 pts In October 2003 the mean sale price of a single family home in Santa Clara County was $683,008. We are interested in determining whether the prices in Cupertino...
4. One flaw in attendance mechanisms is that UC Merced students work jobs to make wages. Suppose that there is a student whose job has a time conflict with our course, and it is tough to predict when we will see that student the next time. So far this semester, that student has a 20.59% attendance score. What is the probability that we will observe 3 absences and then observe the student in class on the fourth lecture. 5. According...
Question 4: In many American families, both parents work outside the home, while children spend time at daycare centers or are cared for by other relatives. The mean amount of time fathers spend with their child(ren) 0-6 years old per day is 1.22 hours. Suppose this time distribution is approximately normal with standard deviation 0.60 hours, and suppose a father with a child 0-6 years old is randomly selected. a. What is the probability that the father spends at least...
Problem What is normal? What makes normal curves different? If you flip 10 coins 1,024 times, what is the total number of times you will get heads? Let's first focus on the theoretical probabilities. The table below shc the expected values and theoretical probabilities obtained. Expected frequency value out of 1,024 Theoretical Number of heads Percent likelihood probability 1 0 1 1024 10 1 10 1024 45 2 45 1024 120 3 120 1024 210 4 210 1024 252 5...
1. The amount of time spent by North American adults watching television per day is normally distributed with a mean of 6 hours and a standard deviation of 1.5 hours. [10 Marksl a. What is the probability that a randomly selected North American adult watches television for more than 7 hours per day? 14 Marks] b. What is the probability that the average time watching television by a random sample of five North American adults is more than 7 hours?...
(2) What is the sample space you obtain if a fair coin and a die are tossed? (3) Suppose there is a machine which randomly selects two digits from a collection of , 2, a. What are the sample points contained in the event that the sum of the two digits b. What are the sample points contained in the event that the absolute difference (4) Suppose that vehicles taking a particular freeway exit can turn right (R), turn left...
The following table shows the percentage of on-time arrivals, the number of mishandled baggage reports per 1,000 passengers, and the number of customer complaints per 1,000 passengers for 10 airlines. Arrivals On-Time per 1,000 Passengers per 1.000 Passengers Airline Airline 1 83.3 0.88 1.57 Airline 2 9.3 1.86 0.86 Airline 3 87.3 1.67 0.99 86.3 2.12 0.75 Airline 4 Airline 5 87.5 2.89 0.47 Airline 6 77.7 2.29 1.07 Airline 7 3.19 83.1 0.24 Airline 8 2.10 86.3 1.81 Airline...
I. At a certain school, 60% of the students wear neither a ring nor a necklace, 20% wear a ring, 30% wear a necklace. Compute the probability that a randomly selected student wears (a) a ring or a necklace; (b) a ring and a necklace 2. A school offers three language classes: Spanish (S), French (F), and German (G). There are 100 students total, of which 28 take S. 26 take F, 16 take G, 12 take both S and...
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