Example 3. Calculate Range and Coefficient of Range for following data. 20-30 30-40 40-50 4 9 16 X: f: 50-60 21 60-70 13 70-80 6

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A: From the provided information, Population mean (µ) = 3 Standard deviation (σ) = 1 X~N (3, 1)

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Q: Q1: In a factory, there are three types of machines M1, M2 and M3 which produces 25% 35% and 40% of…

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Q: Identify the type of sampling used; systematic, convenience, strati ed, or cluster, or none of them.…

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Q: 23: Five of the light bulbs in a box of nine bulbs are burnt out or otherwise defective wo bulbs are…

A: "Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Q4: The probability mass function of a discrete random variable X is given by the following table: X…

A: Given that  Probability mass function of X  X 1 2 3 4 5 6 P(X) 1/36 3/36 5/36 7/36 9/36 11/36…

Q: If S₁ and S₂ are the standard deviations of independent random samples of sizes n₁ from normal…

A: Answer..

Q: A certain system can experience three different types of defects. Let Ai (i = 1,2,3) denote the…

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

Q: Is the height (in inches) of students in this class a quantitative or qualitative variable

A: Qualitative variable : It contains name or levels Example : eye colour, method of study...…

Q: If S₁ and S₂ are the standard deviations of independent random samples of sizes n₁ = n₂ = 10 from…

A: Given information: S1 and S2 are the two standard deviations of independent random samples of sizes…

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Q: The weights of the chocolate in Hershey Kisses are normally distributed with a mean of 4.5338 g and…

A: given data x = weight of chocolate in hershey kisses  normal distriburion μ=4.53389 g, σ = 0.1039 g…

Q: Marginal Distributions For the discrete case: so that for all x₁ E Dx₁. F=Σ Fx (x1) = Σ PX1X2(W1W2)…

A: Here pX1,X2x1,x2 denotes the joint probability mass function (PMF) at X1=x1 and X2=x2 and pX1x1…

Q: Find the mean, variance, and standard deviation of the binomial distribution with the given values…

A: given data n = 122 p = 0.81 binomial distribution

Q: Organize the responses by completing the following frequency distribution table:

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Q: The standard deviation of test scores on a certain achievement test is 10.7. A random sample of 60…

A: It is given that a random sample of 60 scores on this test had a mean of 76.1 and the population…

Q: The national center for educational statistics reported that in 2008-2009, 178,564 master's degrees…

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Q: If the Asian project is not successful, what is the probability that the European project is also…

A: An oil exploration company currently has two active projects, one in Asia and the other in Europe.…

Q: Question 5 Suppose X has a gamma distribution with E(X)=36 and Var(X)=144. Find a and B. 0a-9 and…

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Q: Q.6: A process X(t) with Cxx (t, t+t) = E(X² (t)) - cos(T). We have E(X(t)) = A) +1 B) 1 C)+2 D) 3…

A: We have E(X2(t)) = cos(T)   By the definition of variance, we have that Var(X(t)) = E(X2(t)) -…

Q: binomial distribution is used to model the number of trials until the first success   True False

A: Given that The binomial distribution is used to model the number of trials until the first success:…

Q: Given that the mean of these data is exactly 63.5 and the standard deviation is 12.333, what…

A: Given that Given that the mean of these data is exactly 63.5 and the standard deviation is 12.333…

Q: All or nearly all of the observations fall within the interval (Type a whole number.)

A: It is given that Mean = 72, SD = 4

Q: Suppose X and Y have the joint probability distribution given by the table shown below. Compute…

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Q: Mary wanted to track the growth of various peppers in her garden, so she decided to label them. Her…

A: Given,no.of red peppers(1,2,3,4,5,6)=6no.of green peppers(1,2,3,4,5)=5no.of yellow…

Q: s weathering time (months) categorical or quantitative variable

A: Given that  Weathering time ( months )

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A: It is needed to find the level of measurement of the number of status offenses that adult reported…

Q: If I have a high school student whose mean height is seven or 67.8 inches 150 were girls in the mean…

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Q: For a Normal distribution with mean 5 and standard deviation 2, which of the following Python lines…

A: Given that For a Normal distribution with mean 5 and standard deviation 2, which of the following…

Q: Q1: In a factory, there are three types of machines M1, M2 and M3 which produces 25%, 35% and 40% of…

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Q: We want to conduct a hypothesis test of the claim that the population mean germination time of…

A: Given: .Population meanμ=16.9 Sample mean x¯=17Sample standard deviation (s)=1.5

Q: Q3:Calculate the Pearson correlation coefficient between the student s weight and height Wight of…

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Q: a.) P(ANBAC)= ? 6.) 8 (8²nc)= " C) P(A/B²NC) = ?

A: Given: PA=0.3PBA=0.75PBAc=0.2PCA∩B=0.2PCAc∩B=0.15PCA∩Bc=0.8PCAc∩Bc=0.9

Q: Which of the following situations is likely to produce the most accurate results? Group of answer…

A: In first question, We have to tell response rate for mentioned population is good or not For…

Q: Suppose the joint probability density of X and Y is given by (4xy for 0 ≤ x ≤ 1,0 ≤ y ≤ 1 otherwise…

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Q: ehicle spes USE SALT (a) If 5% of all vehicles travel less than 39.19 m/h and 10% travel more than…

A: Let X represents the vehicle speed.  Then it is given that, P(X<39.19)= 0.05 P(X>73.24)= 0.10…

Q: Directions: Pick a scenario describe a binomial experiment. Recall the random variable X is for the…

A: Given:  Scenario 1 : surgeon perform routinly 4 surgeries the chance (probability)that he performe…

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…

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Q: Scenario: Researchers were interested in how social situations can influence stress-induced eating.…

A: Given information: Problem: How social situations can influence stress-induced eating. No. of…

Q: When we are comparing two sample means that are not the same group of individuals, what kind of test…

A: Given that  When we are comparing two sample means that are not the same group of individuals

Q: different lakes, researchers classified the primary food choice (in volume) found in the alligator's…

A: This type of bar graph, with categories listed in order of frequency, has its special name as…