Compute the correlation coefficient (r) of consumption and price

Q: The probability a machine has a lifespan of more than 5 years is 0.8. Ten machines are chosen at…

A:

Q: On their first date, Kelly asks Mike to guess the date of her birth, not including the year.…

A: Given that  On their first date. Kelly asks Mike to guess the date of her birth, not including the…

Q: This assignment will assess your ability to calculate the mean, median, mode, variance, and standard…

A: Given data 238 212 261 265 175 191 308 295 253 220 234 232 189 208 202 159 304 275 305 308…

Q: Suppose that at the beginning of Year 1 you invested $10,000 in the Stivers mutual fund and $5,000…

A: Given data: Year Stivers Trippi 1 $10,900 $5,700 2 $11,600 $6,400 3 $12,900 $6,900 4…

Q: Year 1979 1980 1981 1982 1983 Pups Born (thousands) 245.93 203.82 179.44 203.58 165.94 Year 1988…

A: Year Pups Born 1979 245.93 1980 203.82 1981 179.44 1982 203.58 1983 165.94 1984 173.27…

Q: given by f(z) = e²²,0 <=z <=10 Calculate the probability that z is less than 0.5

A: Given information: fz=e-z, 0≤z≤10

Q: What is the importance of mathematics in your/our life

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Q: p.d.f. h(x) of the random variable x is defined by h(x)=3/(4(1-x²)),-1<x< 1,Calculate the expected…

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Q: 5. High school textbooks don't last forever. The lifespan of all high school textbooks is…

A: Given that: Mean, μ=9 years Population standard deviation, σ=2.5 years

Q: The probability a machine has a lifespan of more than 5 years is 0.8. Ten machines are chosen at…

A: Given that: Success probability, p=0.8 Sample size is, n=10

Q: College students are randomly selected and arranged in groups of three. The random variable x is the…

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Q: R5.34. AP statistics scores 2016 In 2016, about 200,000 statistics students nationwide took the…

A: The given data: To validate the claim that if the discrepancy between the theoretical distribution…

Q: Make a stemplot to display the distribution of pups born per year. Describe the shape, center, and…

A: The objective is to make a stemplot for the data:

Q: Suppose 2000 students did an exam so the list of 2000 exam marks is a quantitative variable X. Also…

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Q: Write the estimated regression equation using the least squares estimates for b0b0 and b1b1

A: It is given that Intercept b0 = 477.24183007 And coefficient of month b1 = 26.73477812

Q: An article on pedaling techniques for elite endurance cyclists reported on single-leg power at a…

A: Given: Descrete ungrouped data is given and we need to calculate mean and median

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A: The mean is the average value that is obtained by dividing the considered no. of observations from…

Q: List the elements of each of the following sample spaces. Complete parts (a) through (d) below. (2…

A: Given: The set of integers between 1 and 50 divisible by 8.

Q: E (XY)=E (X)E (Y) if x and y are independent. a. b. True False

A: Given: E [XY] = E[X] E[Y] x and y are independent.

Q: Smokers at a company were invited to participate in a smoking cessation program, and were randomly…

A: In this question, Smokers at a company were invited to participate in a smoking cessation program,…

Q: TABLE 1.3 Per capita total expenditure on health (international dollars) Dollars Country Dollars…

A: Introduction: We need to obtain the stemplot for the data.

Q: The probability distribution for the random variable, x, is x:2, 2.5,3.0,3.5,4.0 ,4.5 and P(x):0.07,…

A: x p(x) 2 0.07 2.5 0.36 3 0.21 3.5 0.19 4 0.10 4.5 0.07

Q: Consider a sample of students with five observations and two variables: a dummy variable equal to L…

A: Given that average of the male dummy variable =0.4 &amp; there are total 5 sample  Average height of…

Q: Could you please tell me if my work is correct?   Forbes magazine published data on the best small…

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Q: Having the text (AA AB AC BCCBBAAADB B B C D). Find The information content in (C)

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Q: Find the equation of the line .that best fits, in the least squares sense, the data in the following…

A: The question is about fitting least square line Given : To find : Fit a line using least square…

Q: The probability that a component is acceptable is 0.93. Ten components are picked at random. What is…

A: Given thst, the probability that a component is acceptable is 0.93. Ten components are picked at…

Q: 9. To the left of z= 1.35 10. To the left of z = 0.54

A: Find P(Z&gt;1.35)=? P(Z&lt;0.54)=?

Q: A source produces dots. And dashes '-' with P(dot)=0.65. Find the entropy.

A: Given information: p(.)=0.65 P(-)=1-0.65=0.35 Formula for Entropy: Entropy=-∑piln2pi

Q: A source produces dots. And dashes *-* with P(dot)=0.65. Find the entropy.

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Q: Example 1. Find Range and Coefficient of Range for following data. 18 19 21 23 25 27 29 14 33 34 37

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Q: for the binary system if the entropy =0.9710 so the probabilities are:

A: Formula for Entropy: option a: Entropy=−[(0.3*ln2(0.3))+(0.7*ln2(0.7))]…

Q: Suppose 2000 students did an exam so the list of 2000 exam marks is a quantitative variable X. Also…

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Q: Suppose that P(A) = 0.46, P(C | A) = = (Hint: Draw a tree diagram first) 0.0065, and P(C"' | A') =…

A: Tree diagram are like tree like structure that used to make decision about the problem. It has…

Q: 5. Please calculate the 6-month moving averages for April and May based on the following…

A: 5. Given data, Jan 10 Feb 11 Mar 12 Apr 13 May 14 June 15 July 16 Aug 17 Sep 18…

Q: One of the researchers chose a sample of 800 people from one of the cities and their distribution…

A: Given that: Observed frequency: Blood Type The number of people O 350 AB 100 B 150 A 200…

Q: In a sample of 1200 U.S. adults, 191 think that most celebrities are good role models. Two U.S.…

A: Given data,sample size n = 1200191 think that most celebrities are good role models.here adults…

Q: 4. What is the mean of X, (X) and Y; (Y) respectively? 5. Choose the best set of parameters and…

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Q: Suppose the total weight of passengers and luggage on an airline flight is normally distributed…

A: Mean(µ) = 8914 Standard deviations (σ) = 32 X ~ N (µ, σ )= N(8914, 32)

Q: The average dog at a dog training facility takes 25 trials in order to learn how to sit, with a…

A: Given Information: Mean μ=25 Standard deviation σ=5.25 Required: To find the percentile for a dog…

Q: Data was collected for 40 randomly selected trees growing in the median strip of a busy freeway. The…

A: Determine the minimum possible tree height for the given histogram.   The minimum possible tree…

Q: For the data points in question number 5: What is the value for r2 for the best fit curve?

A: Given the scatter diagram containing 8 data points. x y -5.5 -8 -4.9 -5.3 -3.7 -3.2 -2…

Q: Suppose that a system generates a stream of upper case alphabetic characters and that the…

A: Here our system generates a stream of an upper case alphabetic characters and the probability of a…

Q: Which pairs of events are complementary? 1: the component is reliable 2: there is only one component…

A: A pair of occurrences is said to be complimentary if and only if one of them happens while the other…

Q: 4) Students were asked to report the distance they commute to campus. Relative Frequency 0.3 0.25…

A: Given information: Summary statistics: Column  n Mean Std.dev Median IQR Commute 122 11.717213…

Q: a. Compute the mean and standard deviations for each of the tire pressure columns. b. Draw or create…

A: Data is given For 6 automobiles for pressure of left and right tyres According to guidelines,  We…

Q: signment will assess your ability to calculate t andard deviation of a set of data. The weights o

A: Median is one of the measure of central tendency. Median shows middle value for given data set.…

Q: A time series {yt} follows an MA(2) model: Yt = 2 + Ut +0.54t-1 + 0.4ut-2. Assume that ut is a white…

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Q: The mean playing time for a large collection of compact discs is 34 minutes, and the standard…

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Q: A truth serum has the property that 93% of the guilty suspects are properly judged while, of course,…

A: Given Information: 93% of the guilty suspects are properly judged 7% of the guilty suspects are…