Out of the numbers 1 to 120, one number is selected at random. What is the probability that it is divisible by 8 or 10?

Q: 1. The positivity rate in a certain group is 3.5%. Determine the probability that a batch will test ...

A: The positivity rate in a certain group (p) is 0.035.

Q: Consider the bivariate distribution for the random variables x and y. The variance of the sum of x a...

A: Solution

Q: 3. If the 95% confidence interval for a parameter u is (3.1, 5.1) and the 99% confidence interval fo...

A: For 95% confidence interval for mean is (3.1,5.1) that means the mean should lie between 3.1 and 5.1...

Q: In a law office, the average number of billed hours per day was 150 last year. In the first 85 days ...

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Q: researcher wishes to estimate, with 99% confidence, the population proportion of adults who support ...

A: It is given that Population proportion p = 0.72 Margin of error E = 0.02 Level of confidence = 99% T...

Q: Problem 1.29 I arrive home from a feast and attempt to open my front door with one of the three keys...

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Q: A raffle draw was conducted among the physicians in the Southern Philippines Medical Center wherein ...

A: Given, physician Female male Totals Administrative officers 3 1 4 Consultants 11 36 47 Resi...

Q: Exercise 5: Listed are twenty-nine ages for trees found in the Lake District Botanical Garden in ord...

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: Property 10. If X and Y are independent random variables, then E [h (X ). k (Y)] = E [h (X)] E [k (Y...

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Q: A variable is normally distributed with mean 10 and standard deviation 2. a. Find the percentage of ...

A: Let X is the variable which follows normal distribution, X~N(10,2) It is known that,  Z score= (X-μ)...

Q: Bonus +4 For a certain data set, a z-score of +2 corresponds to x = 65, while a z-score of -1 corres...

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Q: In a given race the odds in favour of four horses A, B, C, D are 1:3, 1:4, 1:5 and l:6 respectively....

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Q: At a factory, batteries are produced with a standard deviation of 3.2 months. In a sample of 81 batt...

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Q: Consider the probability distribution for the number of red pens when 4 pens are selected at random ...

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

Q: The mean number of errors on a test area on a disk is 0.2. Find the probability that a test area has...

A: Let X denote the number of errors on a test area. It is given that mean number of errors = 0.2 Note ...

Q: 3. In a bar graph of qualitative data, the highest bar always corresponds to that data's А. Мean В. ...

A: 3)  The highest bar always correspond to that data is Mean Option (A) is correct  

Q: Use the standard normal table to find the​ z-score that corresponds to the given percentile. If the ...

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Q: Entailment: The normal distribution is the most important probability distribution in statistics bec...

A: The normal distribution describes how the values of a variable are distributed. The normal distribut...

Q: Problem : A system requires a reliability of 0.95 for ten hour operating period. It consists of thre...

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Q: Let X be a continuous random variable that has a normal distribution with a mean of 50 and a standar...

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Q: Manufacturing organizations incur considerable cost in the training of new employees. Not only is t...

A: Given Manufacturing organizations incur considerable cost in training of new employees. Assembly ope...

Q: Which of the scatterplots in the picture show each other the following? ​a) no​ association? ​b) a n...

A: Introduction: It is required to identify the correct description for each graph.

Q: Determine if the following AR processes are stationary. All ,For cases stationary, find experance,va...

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Q: For each value of z*, find the cumulative probability P(Ż s z*). (Round your answers to four decimal...

A: Required probability is P(Z≤1.96)

Q: Let x, be a stationary time series with mean zero and autovocariance function Yx(h). Define y; = xt ...

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Q: The table below gives the list price and the number of bids received for five randomly selected item...

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Q: For items a - j, refer to this) 1. A marketing research consultant conducted a survey of 40 persons ...

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Q: A local charity holds a carnival to raise money. In one Which of the following is the correct interp...

A: The table shows the probability distribution of the value of a random spin.

Q: a) Find F(0) b) Determine P(X≤3) c) Determine P'(X≤4) d)Determine P'(5)

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Q: he weights of men in a particular age group have mean u = 180 pounds and standard deviation o = 32 p...

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Q: The continuous random variable Y has the following pdf: - y?, 0<y< 1; 2 < y < 3; S(1) 15 otherwise. ...

A: We need to find c.d.f. here,  F(y)= P(Y&lt;=y) = ∫0yfydy For 0&lt;y&lt;1  ∫0y1-y2dy  = (y-y3/3)01 = ...

Q: How likely is it for a vehicle to have an accident history if it was known to be a car or a bus?

A: Here complete table

Q: The 90% confidence interval for the population proportion p is (0.706. 0.738) (Round to three decima...

A: Given: sample size, n=2063 Number of adults made resolution, x=1489 

Q: In calculating the mean and standard deviation per column, what formula should be used? is it popula...

A: The data is considered to be a population when the data is collected on all observations which have ...

Q: A company manufactures light bulbs. The company wants the bulbs to have a mean life span of 1010 hou...

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Q: Q3. In a binomial distribution of k Successes from n trials: Thenumber of different sequences is giv...

A: (I). In binomial distribution, if there are n number of trials and k number of successes then the di...

Q: Table 3 Two-point Discrimination values for Men (n=25) and Women (n=25) S. No Skin region Men (in mm...

A: S No Skin Region Men Women 1 Upper Lateral arm 38.1±1.1 42.3±1.1 2 Lower Lateral arm 33.7±1 35.6...

Q: In a law office, the average number of billed hours per day was 147 last year. In the first 74 days ...

A: Given information Hypothesized mean µ = 147 Sample size (n) = 74 Mean x̅ = 156 Standard deviation (s...

Q: A techhician is workKing ntal research laboratory. She has 100 soll The technician randomly picks a ...

A: We have given that,  Total sample in laboratory = 100 The sample the technician picks does not conta...

Q: hand written

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Q: 16. The following scatter plot graphs the average final grade students received in Introduction to B...

A: Here, Y= final grades  X= absent (number of days)  Graph is given, we have to answer for mentioned q...

Q: The data below are the monthly average high temperatures for November, December, January, and Februa...

A: Given information- We have given the data below are the monthly average high temperatures for Novemb...

Q: High blood pressure: A national survey reported that 34% of adults in a certain country have hyperte...

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Q: You are given the sample mean and the population standard deviation. Use this information to constru...

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Q: The following table gives the total endothermic reactions involving sodium bicarbonate Final Tempera...

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Q: Two types of phone operating system are being tested to determine if there is a difference in the pr...

A: Solution: Given information: n1= 150 Sample size of phones in sample 1n2= 150  Sample size of phones...

Q: Problem 1.73 A laboratory keeps a population of aphids. The probability of an aphid passing a day un...

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Q: how are parameters and statistics related?

A: Parameter: The parameter is used to explain the entire population. For example, a teacher calculated...

Q: A sample of 2 cards are drawn at random from a population of 6 cards numbered 1 to 6. Find the proba...

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Q: Consider the data. 23 4 3 8 6. 10 15 SSE (a) Compute the mean square error using equation s = MSE = ...

A: For the given data set, Perform the hypothesis test using regression.