et x be the number of red balls among 3 balls randomly selected from a bag containing 9 black ball and 6 red balls. Find: P(x=0) P(x=1)

Q: 6. Which of the following table represents probability distribution? A. P(X) О.11 0.15 0.42 0.44 в. ...

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Q: You are interested in finding a 98% confidence interval for the average number of days of class that...

A: I want to find mean and standard deviation from data.   Solution: x x2 7 49 10 100 1 1 8...

Q: #2 ou want to know the mean number of hours music students at your school practice each week. At eac...

A: We have given that data  I want to find mean.  Mean = sum of all observations/total number of observ...

Q: When are two attributes said to be independent ? (b) From the following data calculate the remaining...

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Q: The sale of a company rose from $ 60,000 in the month of August to $ 69,000 in the month of Septembe...

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Q: What do we mean when we say that correlation does not imply causality? What are some of the ways in ...

A: Correlation: When there is a change in one variable when other variable is change, is called correla...

Q: 7. Suppose 12% of graduates of the Architectural Engineering Technology program take a job outside t...

A: This is a Simple Binomial Probability distribution with n=2 and p=0.12  

Q: Question 7: The finishing time for the top 100 men in a marathon are displayed in the provided figur...

A: We want to tell the shape of histogram 

Q: In a survey, 11 people were asked how much they spent on their child's last birthday gift. The resul...

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Q: Q5. Which of these is not a binomial probability? A. 10C4× (0.4)*(0.6)6 B. Cs (0.7) (0.3)? C. 10C5 x...

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Q: 2. In a random sample of 87 college students, the average number of GroupMe messages handled in one ...

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Q: A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 70 specim...

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Q: mple of female skeletons. [The data was provided by Dr. Ayers-Darling, former professor at MVCC.] h...

A:   sample mean (x̄) = Σx/n  =299/10 = 29.9sample mean (ȳ) = Σy/n = 623/10 = 62.3 Sxx = 15.72 Syy = 2...

Q: The first student enrolled in one Statistics class was selected randomly and then every 8th student ...

A: Here in the above question 1 , the number of times per week is quantitative-discrete. 2- in this sys...

Q: Q. 6. Calculate Karal Pearsons co-effícient of correlation from the following given data. (i) Sum of...

A: Givensum of deviations of x (∑x)=5sum of deviation of y(∑y)=4sum of square of deviation of x(∑x2)=40...

Q: 11. The probabilities that a customer buys 5,8,9,12 and 15 items in a grocery store are 0.06, 0.14, ...

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Q: A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 68 specim...

A: We have given that,  Sample mean (x̄) = 39.3, standard deviation (s)= 7.3 and sample size (n) = 68 T...

Q: Suppose you just purchased a digital music player and have put 15 tracks on it. After listening to t...

A: Given : Total songs =15 Number of songs you like=2 Number of songs you dislike =13   Note:As per gui...

Q: During a period of decline in stock market prices a stock sold at $. 50 per share on one day $. 40 o...

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Q: how to I solve a using single linear Regression in excel or any excel method? I am struggling to und...

A: Formula for Prediction interval: y^±tα2,n-2s1+1n+x-x¯2SSxx Let X be the size and Y be the rent. Exce...

Q: Situation 2. Dr. Romero observed the level of motivational behavior of his students and tried to fin...

A: Given information: Student Science Grade Motivational Behaviour 1 Failed 3.46 2 Failed 4.3...

Q: Plastic parts produced by an injection-molding operation are checked for conformance to specificatio...

A: The probability density function of Hypergeometric distribution is given by  

Q: i.i.d. a) dard error (SE), and mean squared error (MSE) of A. Is consistent? Prove/disprove Let X1,....

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Q: Number of Tails (X) 1 on P(X) 0.125 0.375 0.375 О.125 4. Find P (X 1) A. 0.125 B. 0.5 С. О.625 D. 0....

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Q: Assume that a sample is used to estimate a population mean μμ. Find the 90% confidence interval for ...

A: We have given that  Sample size n =39 Sample mean =74.7 Standard deviation =19.7

Q: Assume the random variable x is normally distributed with mean u = 50 and standard deviation o = 7. ...

A: Given: X is normally distributed random variable with μ=50σ=7

Q: If a person rolls a six-sided die and then flips a coin, describe the sample space of possible outco...

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Q: Explain the importance of recording vital statistics for healthcare policy planning

A: Vital Statistics :The statistics relating to births, deaths, marriages, health, and disease. Vital s...

Q: Q. From the data given below construct quantity index number in 1984 with 1983 as base year. Use sim...

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Q: Q9. The diagram is the distribution of the Standard Normal variate, Z. wwww w 0.5 0.4 0.3 .025 .025 ...

A: We have given that.   X~N( μ , ?^2 )   μ =0 , ? =1   Z-score =( x - μ )/?

Q: Q. 6. Calculate quartile deviation and its co-efficient from the dat given below : Age of years : 15...

A: Given that  X Frequency 15 8 30 12 45 16 60 20 75 6 90 3  

Q: A new fertilizer was applied to the soil of 145 bean plants. 55% showed increased growth. Find the ...

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Q: A survey is planned to determine the mean annual family medical expenses of employees of a large com...

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Q: Express the confidence interval 0.182±0.0470.182±0.047in open interval form (i.e., (0.155,0.855)).

A: We have given that  Confidence interval ( 0.182±0.047) In confidence interval.  ( point estimate ± m...

Q: 1 17 f(x) .05 .16 .17 .24 .38 Consider this probability distribution. What is P(X < 5) ?

A: given that ; X takes values 1,2,5,7,8 and  their Corespoding probabilities are given  f(x) = P( X = ...

Q: Suppose there is a 10.4% probability that a randomly selected person aged 20 years or older is a smo...

A: Given that  P(smoke)=10.4%=0.104 P(Males/Smoke)=19.8%=0.198

Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on ave...

A: We have given that,  Sample mean (x̄) = 60.9, standard deviation (s)= 16.9 and sample size (n) = 21 ...

Q: Q. 13. Ten competitors in a contest were ranked by two judges in the following order: First judge 1 ...

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Q: . Construct a frequency distribution table. : A survey was taken on Andres Bonifacio Avenue. In eac...

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Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers be...

A: Given information- Population standard deviation, σ = 56.8 Confidence interval = 0.99 Significance l...

Q: Elements of Statistical Inference Researchers are interested in whether giving individuals temporar...

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

Q: height and head circumference. She randomly selects 8 children from her practice, measures their hei...

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Q: Situation 2. Dr. Romero observed the level of motivational behavior of his students and tried to fin...

A: Given information: Student Science Grade Motivational Behaviour 1 Failed 3.46 2 Failed 4.3...

Q: Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 1 4 Probabil...

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Q: 5. Refer to the following table First Event Second Event Al A2 A3 Total 11 B1 4 14 29 B2 24 10 41 To...

A: Given that data table      First event     Second event  A1 A2 A3 Total  B1 4  11 14 29 B2 ...

Q: Explain the difference between absolute and relative dispersion. If 20 is subtracted from every obse...

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Q: 31) Based on the scatter plot below, the best estimate of the correlation coefficient is 40 30 20 10...

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Q: Calculate range and its co-efficient from the following statistical data: Profits ( $ in 000's) 125,...

A: From the provided information, The data values are as follow: 125, 50, 30, 20, 80, 85, 90, 160, 180,...

Q: The Random variable, Z ~ N(0,1). Identify the correct statements: I. Z is the Standard Normal variat...

A: It is given that Z follows N(0,1)

Q: Calculate Price Index for 1995 and 1996 using 1990 as base year from the following dafa : Commodity ...

A: