3) The average rent for a condo/duplex listed in the Sacramento News & Review “Classified" ads in December, 2003 is $882 and the standard deviation is $204 per month. Let Y be the monthly rent for a condo/duplex in the Sacramento area. a. Sketch the curve and find P(Y < $600) b. Sketch the curve and find P(S600 < Y < $800).

Q: If these data are converted to deviation scores, the last value (15) would have a value of Y 2 9 11…

A: Solution: The mean of Y is

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A: Given information Mean µ = 25 pounds Standard deviation σ = 3 pounds Z = -2

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A:

Q: Solve the following: Graph and write all the necessary solution, then, box your final answer. (5…

A: μ=675 and σ=45 z-value for 700=700-μσ=700-67545=0.5556 z-value for 450=450-μσ=450-67545=-5

Q: For the given speed information in the table below, find the standard deviation and the ?85th…

A: Speed Frequency x d=x-49.9 f.d f.d2 36-39.9 3 37.9 -12 -36 432 40-43.9 7 41.9 -8 -56 448…

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A: If we look at both the graphs provided (at 220 C and 250 C ) , the curves are skewed but the data is…

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A: Definition: Z-score A Z-score is a numerical measurement that describes a value's relationship to…

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A:

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A: Standard deviation of X merely serve to scale the units of the coefficients and standard errors in…

Q: A machine dispenses water into a glass. Assuming that the amount of water dispensed follows a…

A: Solution: Let X be the random variable that the  amount of water dispensed ha uniform distribution…

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A:

Q: Assume the cholesterol levels of adult American women can be described by a Normal model with a mean…

A:

Q: What is the Z value for a value of X = 60?

A:

Q: he average number of Hate Crimes in the United States per year (1991 to 2018) is approximately 7900…

A: Given: Population mean μ=7900 Population standard deviation σ=1200 X ~ N (7900, 12002 )

Q: What raw score is needed to be in the bottom  28%? A group of students take a exam and the adverage…

A: Given that, For a normally distributed random variable, X with mean μ, and standard deviation σ, the…

Q: Assume that the professor in a class assigns grades based on the following: A: Scores wich are 1.5…

A: The mean and standard deviation of the scores can be calculated as;

Q: Assume that adults have IQ scores that are normally distributed with a mean of 97.7and a standard…

A: Given that  IQ scores that are normally distributed Mean (μ) = 97.7  Standard deviation (σ) = 19.7…

Q: the average grade is 84 with a standard deviation of 4. What is each grade for -1 2 0 1.5 -1.25

A: Given Mean μ=84Standard deviation σ=4 The formula for Z score isZ=X-μσX=Z×σ+μ

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A: Given problem Given that   Science major in college pay an average of $650 per year for books with…

Q: On a dry surface, the braking distance of a fully loaded tractor trailer is 370 ft with a standard…

A: We have given that.   X~N( μ , ?^2 )   μ=370 , ? =40   Z-score =( x - μ )/?

Q: Roel's score in Math was 90 with a mean of 85 and a standard deviation of 1.5. His score in English…

A:

Q: Which of the following are the mean and standard deviation of Y?

A: The mean and Standard deviation for random variable X are 5 and 2.3 respectively.

Q: display of data to find the standar

A: Given,

Q: Write down the formulas for the standard deviation of x.

A: The formula for the sample standard deviation can be written as: Here, n is the sample size and x̅…

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A: Calculating The standard normal variate i.e. z-score for 82 marks with mean =70 and standard…

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A: The average amount of precipitation in a city follows a bell-shaped curve thas is equivalent to say…

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A:

Q: 2.2% 0.1% 2.2% 34.1% 34.1% 0.1% 13.6% 13.6% F C B -- Α μ-3σ μ-20 μ -1σ μ. μ+1σ μτ2σ μ+3

A:

Q: It is generally believed that the heights of adult females in the U.S. are approximately normally…

A:

Q: A group of students take a exam and the adverage was m = 90 and the standard deviation was 7.8.…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: Professor Harde assumes that exam scores are normally distributed and wants to grade "on the curve."…

A:

Q: A large group of students took a physics test and the final grades have a mean of 70 with a standard…

A: The random variable X follows normal distribution. We have to find the percent of students scored 70…

Q: he weight of all cans of coffee has a standard deviation of 0.34 ounces. A sample of 79 cans of…

A:

Q: Suppose that, for a certain exam, a teacher grades on a curve.   It is known that the mean is 65…

A: According to Empirical rule, middle 68.2% of students receive C. Nreceive C=0.682×25…

Q: Find and Stondard deviation X. mean of

A: Let , the probability density function of X is given below, = 0 ; otherwise Our aim is to find the…

Q: .Use the data to lation mean and andard deviation

A: x (x-xbar)^2 92 22.09 103 39.69 99 5.29 108 127.69 86 114.49 94 7.29 90 44.89 102…

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A:

Q: In​ 2007, the mean rate of violent crime​ (per 100,000​ people) for 10 regions in the northeast of a…

A:

Q: Assume that the readings on the thermometers are normally idstributed with a mean of 0" and a…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

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A:

Q: A distribution of exam scores has a mean of u=80. If your score is X=72, which standard deviation…

A:

Q: A random sample of 88 eighth grade students' scores on a national mathematics assessment test has a…

A: Given,sample size(n)=88sample mean(x¯)=281population standard…

Q: Suppose you have already calculated the mean, the average deviation, and the standard deviation of…

A: (a) Condition for Average Deviation: If the value of the observation is increased or decreased by a…

Q: The time is takes a studen to walk from the dorn to the chemistry lab follows roughly a Normal…

A: Mean(µ) = 20 Standard deviations (σ) = 3 X ~ N (µ, σ )= N ( 20, 3)

Q: The mear was 80 and the Standard deviation was 4, Kawhi scored 5, 8o his z-Score was more than one…

A:

Q: A farm hatches chicken eggs in batches of 15 and there is a 3% infertile rate. Find the standard…

A: Obtain the standard deviation for the number of infertile eggs per batch.   The standard deviation…

Q: a) Find the standard deviation of prices in each city.

A: Given data davao city tagum city 45.9 46.2 48.75 47.95 48.9 49.95 49.01 45.52 45 46.83…

Q: . Draw the normal curve using the data given a.x = 30. s = 8 b. x = 83. s = 6 %3D

A:

Q: It is generally believed that the heights of adult females in the U.S. are approximately normally…

A: Given: Population mean height μ=65 Population standard deviation σ=4 Let X represent the height of…

Q: Karen scored a 76 on an exam whose mean is 74 and whose standard deviation is 8. Find her z score.

A: