14. In a positively skewed distribution, Kim scored the mean, Khloe scored the median, and Kourtney scored the mode. Who had the highest score? а. Khloe b. Kim Kourtney They all scored approximately the same С. d.

Q: A population has a mean μ=81 and a standard deviation σ=6. Find the mean and standard deviation of...

A: From the provided information, Mean (µ) = 81 Standard deviation (σ) = 6 X~N (81, 6)

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Q: TS (Y V is a two-dimensional RV uniformly distributed over the triangular region R bounded by y = 0,...

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Q: Find the sum of the coefficient in the expansion (2019.x2 – 2020x + 2021)2022.

A: For a given  binomial expansion we need to find the sum of the all coefficient.  

Q: 4. (Proportion 5%) Supposing that X,,X,.,X,-N,(u,E) as an i.i.d with 2| is given. Determine the dist...

A: just find the mean vector and covariance matrix..............

Q: According to a study the average waiting time at the drive thru window at Mc Donald as measured from...

A: Givensample size(n)=25Mean(x)=3.84standard deviation(s)=0.4α=0.05

Q: A store manager gathers some demographic information from the store's customers. The following chart...

A: Given data is  Age No. of customers <20 97 20-29 57 30-39 81 40-49 66 50-59 69 ≥60...

Q: 1. In Statistics and Probability examination, the average grade was 74 and the standard deviation wa...

A: Given that, In Statistics and Probability examination, the average grade was 74 and the standard dev...

Q: 6. A distribution with a u = 55 and o = 6 is standardized so that the new mean and standard deviatio...

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

Q: ng table ortable industrial vacuum cleaner. The times in the table are in minutes. Demand forecasts ...

A:

Q: Find the mean and standard deviation of the follow- ing : Series Frequency 15-20 2 20-25 25-30 30-35...

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Q: 24 % of the athletes at a large university are business majorss. If four athlets are selected at ran...

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Q: The file contains the amount that a sample of nine customers spent for lunch ($) at a fast-food rest...

A: Observation: XX X^2X2 1 4.20 17.64 2 5.03 25.3009 3 5.86 34.3396 4 6.45 41.6025 5 7.38 54....

Q: A recent survey shows that 60% of families regularly schedule family vacations for the month of Apri...

A: Given, 60% of families regularly schedule family vacations for the month of April. Let X = number of...

Q: Labor Day was created by the US Labor movement over 100 years ago. It was subsequently adopted by mo...

A: Given that                          We have to find  (a) State the null and alternative hypotheses....

Q: Fifteen students took a test. The marks obtained by 10 student, who have cleared the test, are given...

A:

Q: SCORES 30-34 6. 35-39 13 40-44 15 45-49 12 50-54

A:

Q: The simple correlation coefficients between profits (X,), sales (X,) and advertising ex- penditure (...

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Q: f A is an event in the finite sample space, then prove that P (A) equals the sum of the probabilitie...

A:

Q: The probability mass function of a discrete random variable is a description of the probabilities as...

A: From the provided statement regarding the probability mass function, the appropriate option is to be...

Q: The red blood cell counts (in millions of cells per microliter) for a population of adult males can ...

A:

Q: group of 18 subjects is given 2 minutes to construct as many words as possible from a set of scrambl...

A: First we need to arrange the given data set in ascending order.  1, 2, 3, 3, 4, 4, 5, 5, 5, 6, 6, 6,...

Q: Listed below are the top 10 annual salaries​ (in millions of​ dollars) of TV personalities. Find the...

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Q: Four cards are drawn from a pack of cards. Find the probability that () all are diamonds, (ii) there...

A: GivenFour cards are drawn from a pack of cards Total no. of cards = 52

Q: 24. A population has SS = 100 and o 2= 5. How many scores are in the population? а. 10 b. 20 с. 200 ...

A: 24) It is given that SS=100 and σ2 is 5.

Q: (d) Which of the following is the best interpretation of the correlation coefficient? OWhen the pric...

A:

Q: Given the following probability distribution, calculate the standard deviation x P(x) 1 0.123 2 0.2...

A:

Q: Find the corresponding area of the following using the attached z-table. a) z=0 and z=1.00 b) z=0 ...

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Q: Illustration 9. (b) Ten per cent of the tools produced in a certain manufacturing process turn efect...

A: Given data.n=10p=10%=0.10P(X=2)=?

Q: There are n people gathered in a room. (i) What is the probability that two (at least) have the same...

A:

Q: The following table gives the number of days in a 50-day period đuring which auto- mobile accidents ...

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Q: 17. One sample with n = 4 scores has a mean of M = 12, and a second sample withn = 6 scores has a me...

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Q: If it costs a dollar to draw one number of a sample, how much would it cost in sampling from a unive...

A:

Q: Let {X;} follows a stationary ARMA(1,1) process, i.e., (1 – QB)X, = (1+ 8B)W̟, where |ø| < 1, W̟~WN(...

A: Given Let {Xt} follows a stationary ARMA(1,1) process  

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Q: In a certain examination, the average grade of all students in class A is 68.4 and that of all stude...

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Q: Calculate trend values by the method of Least Square from the data given below and estimate the sâle...

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Q: 21. Which set of scores below has the smallest standard deviation? а. 11, 17, 31, 53 b. 5, 11, 42, 2...

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Q: Obtain the median for the following frequency distribu- tion : 1 4 7 9 x: f: 10 11 16 20 25 15 9. N ...

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Q: The Bahamas is a tropical paradise made up of 700 islands sprinkled over 100,000 square miles of the...

A: As per policy I have solved first three sub parts Given Mean of household income =36807 Standard dev...

Q: If X and Y are independent RVs each normally distributed with mean zero and -1 variance o, find the ...

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Q: Let us consider the weight of the 50 students in kg. Compute grouped frequer distribution including ...

A: In the given values, The minimum value is 32 The maximum value is 64. Number of classes is 9. Theref...

Q: Find the characteristic function of the geometric distribution given by P(X = r) = q' p, r = 0, 1, 2...

A:

Q: Consider the histogram given below:  (a) The interval that contains closest to 10 students is A. 6...

A: In the given histogram the frequency of students, shown on the y-axis, are represented corresponding...

Q: Birth weights of babies born to full-term pregnancies follow roughly a normal distribution. At Meado...

A: Let X be the random variable from normal distribution with mean (μ) = 7 pounds, standard deviation (...

Q: Four cards are drawn from a pack of cards. Find the probability that (i) all are diamonds, (ii) ther...

A:

Q: For a distribution the first four moments about zero are 1, 7, 38 and 155 respectively (1) Compute t...

A: Let μi' denote the ith order raw moment. Given,  μi' = 1, μ21 = 7, μ3' = 38 and μ4' = 155          

Q: Find the probability that the value of an item drawn at random from a normal distribution with mean ...

A:

Q: how to find process capability ratio

A:  The process capability ratio is defined as Cp=USL-LSL6σ Cp=Process Capability Ratio USL=upper speci...

Q: Let lij (i = 1,2, j = 1, 2) be the four treatment means. Show that the F-statistic for Factor A is t...

A: Given information: CA=μ11+μ12-μ21-μ222