To graph: The normal curve for the survey on college students on their admission to other college.

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Answer 1

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 18, Problem 25E

To determine

To graph: The normal curve for the survey on college students on their admission to other college.

(a)

To determine

To explain: The results of the sample from the sampling distribution in simple language.

(b)

To determine

To find: The percentage of samples with sample proportion greater than 0.37.

(c)

To determine

To find: The probability of samples with sample proportion less than 0.33.

(d)

To determine

To find: The probability for the sample result to be either less than 0.33 or greater than 0.35 by using Rule D of the probability.

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30. An individual who has automobile insurance from a certain company is randomly selected. Let Y be the num- ber of moving violations for which the individual was cited during the last 3 years. The pmf of Y isy | 1 2 4 8 16p(y) | .05 .10 .35 .40 .10 a.Compute E(Y).b. Suppose an individual with Y violations incurs a surcharge of $100Y^2. Calculate the expected amount of the surcharge.

24. An insurance company offers its policyholders a num- ber of different premium payment options. For a ran- domly selected policyholder, let X = the number of months between successive payments. The cdf of X is as follows: F(x)=0.00 : x < 10.30 : 1≤x<30.40 : 3≤ x < 40.45 : 4≤ x <60.60 : 6≤ x < 121.00 : 12≤ x a. What is the pmf of X?b. Using just the cdf, compute P(3≤ X ≤6) and P(4≤ X).

59. At a certain gas station, 40% of the customers use regular gas (A1), 35% use plus gas (A2), and 25% use premium (A3). Of those customers using regular gas, only 30% fill their tanks (event B). Of those customers using plus, 60% fill their tanks, whereas of those using premium, 50% fill their tanks.a. What is the probability that the next customer will request plus gas and fill the tank (A2 B)?b. What is the probability that the next customer fills the tank?c. If the next customer fills the tank, what is the probability that regular gas is requested? Plus? Premium?

Answer 2

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 18, Problem 25E

To determine

To graph: The normal curve for the survey on college students on their admission to other college.

(a)

To determine

To explain: The results of the sample from the sampling distribution in simple language.

(b)

To determine

To find: The percentage of samples with sample proportion greater than 0.37.

(c)

To determine

To find: The probability of samples with sample proportion less than 0.33.

(d)

To determine

To find: The probability for the sample result to be either less than 0.33 or greater than 0.35 by using Rule D of the probability.

Expert Solution & Answer

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Answer 3

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 18, Problem 25E

To determine

To graph: The normal curve for the survey on college students on their admission to other college.

(a)

To determine

To explain: The results of the sample from the sampling distribution in simple language.

(b)

To determine

To find: The percentage of samples with sample proportion greater than 0.37.

(c)

To determine

To find: The probability of samples with sample proportion less than 0.33.

(d)

To determine

To find: The probability for the sample result to be either less than 0.33 or greater than 0.35 by using Rule D of the probability.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 18, Problem 25E

To determine

To graph: The normal curve for the survey on college students on their admission to other college.

(a)

To determine

To explain: The results of the sample from the sampling distribution in simple language.

(b)

To determine

To find: The percentage of samples with sample proportion greater than 0.37.

(c)

To determine

To find: The probability of samples with sample proportion less than 0.33.

(d)

To determine

To find: The probability for the sample result to be either less than 0.33 or greater than 0.35 by using Rule D of the probability.

Expert Solution & Answer

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Answer 5

Chapter 18, Problem 25E

To determine

To graph: The normal curve for the survey on college students on their admission to other college.

(a)

To determine

To explain: The results of the sample from the sampling distribution in simple language.

(b)

To determine

To find: The percentage of samples with sample proportion greater than 0.37.

(c)

To determine

To find: The probability of samples with sample proportion less than 0.33.

(d)

To determine

To find: The probability for the sample result to be either less than 0.33 or greater than 0.35 by using Rule D of the probability.

Answer 6

Chapter 18, Problem 25E

To determine

To graph: The normal curve for the survey on college students on their admission to other college.

Answer 7

Chapter 18, Problem 25E

To determine

To graph: The normal curve for the survey on college students on their admission to other college.

Answer 8

(a)

To determine

To explain: The results of the sample from the sampling distribution in simple language.

Answer 9

(a)

To determine

To explain: The results of the sample from the sampling distribution in simple language.

Answer 10

(b)

To determine

To find: The percentage of samples with sample proportion greater than 0.37.

Answer 11

(b)

To determine

To find: The percentage of samples with sample proportion greater than 0.37.

Answer 12

(c)

To determine

To find: The probability of samples with sample proportion less than 0.33.

Answer 13

(c)

To determine

To find: The probability of samples with sample proportion less than 0.33.

Answer 14

(d)

To determine

To find: The probability for the sample result to be either less than 0.33 or greater than 0.35 by using Rule D of the probability.

Answer 15

(d)

To determine

To find: The probability for the sample result to be either less than 0.33 or greater than 0.35 by using Rule D of the probability.

Answer 16

Expert Solution & Answer

Answer 17

Expert Solution & Answer

Answer 18

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Answer 19

Ch. 18 - Prob. 1CS Ch. 18 - Prob. 2CS Ch. 18 - Prob. 1CTB Ch. 18 - Prob. 2CTB Ch. 18 - Prob. 3CTB Ch. 18 - Prob. 4CTB Ch. 18 - Prob. 5CTB Ch. 18 - Prob. 6CTB Ch. 18 - Prob. 7CTB Ch. 18 - Prob. 8E

To graph: The normal curve for the survey on college students on their admission to other college.

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To graph: The normal curve for the survey on college students on their admission to other college.

To explain: The results of the sample from the sampling distribution in simple language.

To find: The percentage of samples with sample proportion greater than 0.37.

To find: The probability of samples with sample proportion less than 0.33.

To find: The probability for the sample result to be either less than 0.33 or greater than 0.35 by using Rule D of the probability.

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Chapter 18 Solutions