Frequency 247 20 16 12 8- 4 0+ 70.5 10 75.5 Prealgebra Exam Scores 4 80.5 19 85.5 Scores 17 90.5 15 95.5 100.5

Q: n = 47 p = 0.2 Find μ.     9.7     8.9     9.4

A: Hint:  For Binomial distribution mean = μ= np

Q: A student goes to the library. Let events B = the student checks out a book and D = the student…

A: Given,P(B)=0.33P(D)=0.24P(D|B)=0.52

Q: 1. exactly 5 people arrive in a given hour. 2. at least 2 people arrive in a given 20-minute…

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Q: The following data represent the times in minutes required for 18 co-workers to commute to work. V…

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Q: Following are measurements of soil concentrations (in mg /kg) of chromium (Cr) and nickel (Ni) at 20…

A: Given: Cr 260 19 36 247 263 319 317 277 319 264 23 29 61 119 33 281 21 35 64 30 Ni 435 377 359…

Q: an example of a discrete quantitative ent grade point average e spent preparing for SAT

A: A variable can be used to characterize a individual quantitative or qualitative characteristics.…

Q: A golf ball is selected at random from a golf bag. If the golf bag contains 4 brown ​balls, 6 orange…

A: Given  Brown balls = 4 Orange Balls = 6 Black balls = 11 Now we will calculate total balls inside…

Q: The data table showing the results on the competitors success are shown below with the expected…

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Q: 1) Suppose tha Y is a random variable having an gamma distribution with the value of k such that an…

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Q: Suppose that 10 students have taken an exam and that the mean and median scores are both 60. (Since…

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Q: In a clay pigeon shooting competition, hunters enter a tournament where they compete with their…

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Q: Assume that you have a sample of n, 8, with the sample mean X, 41, and a sample standard deviation…

A: Suppose μ1, μ2 are the population means of Population 1 and Population 2, respectively.

Q: The value given below is discrete. Use the continuity correction and describe the region of the…

A: Given that  Probability of exactly 5 passengers who do not show up for a flight.

Q: Find 24th percentile, P24,  from the following data 100 120 140 170 190 210 230 290 300 320 330 350…

A: Data given…

Q: According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15%…

A: colour % probability brown 12% 0.12 yellow 15% 0.15 red 12% 0.12 blue 23% 0.23 orange 23%…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 50 subjects were treated with…

A: It is given that Sample size n = 50 Sample mean difference = 5.7 Sample SD s = 16.5 Confidence level…

Q: 5. Based on past experience a delivery company's trucks will average 1.3 parking tickets per truck…

A: Given that: Population mean, μ=1.3 Population standard deviation, σ=0.7

Q: Identify the following measures as either quantitative or qualitative: a. The genders of the first…

A: The variable, which is essentially measured through a nominal scale is described as a qualitative…

Q: A statistician selects a sample of 20 participants and makes the decision to retain the null…

A: Hypothesis test are used to determine the relationship between the sample and population. Hypothesis…

Q: e heights of people in a certain population are normally distributed with a mean of 68 inches and a…

A: Given that.   X~N( μ , ?^2 )   μ=68     , ?=3.8   , n=43

Q: Question 27 Storm data collected from 1858-2017 show that the number of tropical storms per year is…

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Q: Find the 25th, 50th, and 75th percentile from the following list of 33 data 4 10 12 15 19 23 27 31…

A: Given: n = 33 Formula Used: Percentile rank = P(n+1)100

Q: 5. The following data refer to the profits of a store in thousand taka for the last 6 months are 9,…

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Q: The data given to the right includes data from 36 candies, and 8 of them are red. The company that…

A: We have given thatn = 36x = 8p̂ = x/n = 8/36 = 0.222Significance level (α) = 1 - 0.90 = 0.10

Q: Calculate the fitted y; for each value of x¡ used to fit the model. Then construct a graph of y;…

A: Given: Taxes Sale price 4.9176 25.9 5.0208 29.5 4.5429 27.9 4.5573 25.9 5.0597 29.9…

Q: A students ID number is a/an ____ variable? A. Ordinal B. Nominal C. Continuous D. Discrete

A: The given statement is 'The variable student ID number'.

Q: 38. The life, in years, of a certain type of electrical switch has an exponential distribution with…

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Q: 1. Compute the correlation coefficient. X 5 4 2 6 3 36 4 1 4 5 1 The Correlation Coefficient Given…

A: Given: n = 5 Formula Used: Correlation coefficient r = n∑XY-∑X∑Yn∑X2-∑X2n∑Y2-∑Y2

Q: 6. (L&K 4.24) In problem 5, test the null hypothesis Ho = 6 at significance level a = 0.05.

A: Given: n = 10 α = 0.05 Formula Used: Test-statistic t = X-μs2n

Q: Find the CDF of an exponential random variable with mean 1/λ .

A: Solution

Q: Question 1. Data were collected to see whether booked time (Y) for installation jobs is related to…

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Q: K Use the given information to find the number of degrees of freedom, the critical values X and X,…

A: It is given that  n = 23 s = 65.6

Q: Let A and B have the joint probability density function f(a,b) = 6(1-a - b) for a+b 0, b>0 and it is…

A: Given that, A and B have joint pdf: f(a,b)= 6(1-a-b)   ,   a+b>1, a>0,  b>0

Q: The Virginia Cooperative Extension reports that the mean weight of yearling Angus steers is 1152…

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Q: You need to have a password with 4 letters followed by 2 even digits between 0 and 9, inclusive. If…

A: Concept:When selection is done without repetition then it means that once a digit or letter is used…

Q: Na 1970 PASHET IC HEALTH ASMETH-PASMETH-R OMETH-PASMETH-PASMETH-PAS Ss = Sample size…

A: The notations in the formula of the sample size is given as: Ss = Sample size that needs to be…

Q: The following is a sample of 20 measurements. 5 12 8 9 11 a. Compute x, s², s for this sample. x=…

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Q: b. The sum of numbers when a pair of dice is rolled. X 2 3 4 5 6 7 8 9 10 11 12 P(X)

A: Given information: The experiment is given rolling a pair of dice. Find: The probability mass…

Q: Consider a data set which gives the body temperatures of a random sample of 52 healthy adults,…

A: Given n=sample size=52, mean=M=98.28, s=sample standard deviations=0.68  X=body temperature=101

Q: records of a casualty insurance company show that, in the past, its clients have had a mean of…

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Q: The U.S. government provides fuel economy (in miles per gallon) and other information about late…

A: Concept: Slope represents the change in the dependent variable (I.e. Mpg) when you change the…

Q: A candy bar manufacturer is interested in trying to estimate how sales are influenced by the price…

A: Correlation is the measure of association between the two numerical variable. Correlation is denoted…

Q: (i) P(A OR B) = ()A'= (k) P(A')= (1) P(A) + P(A¹') = (m) P(AB)= (n) P(BA) =

A: Given S= { 3,6,9,....30} Now,  N= 10 Event (A) = Even numbers. Event (B)= greater than 25 We have to…

Q: Discuss the significance of the term to in the experiment. Where is your measured data (i.e. the…

A: The experimental value EX is expressed as: EX=x±σ. T is the sample statistic that follows a normal…

Q: # of Movies 0 1 2 3 4 5 Frequency 4 5 3 5 4 5 The first quartile :  The third quartile:  What…

A: The given data is a s follows: # of movies Frequency 0 4 1 5 2 3 3 5 4 4 5 5

Q: Seventy-eight percent of the light aircraft that disappear while in flight in a certain country are…

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Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

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Q: K dogs, each of size n=15, are randomly collected and the sample means are found. Is it correct to…

A: Central limit theorem:   If the size of the samples taken from the population are sufficiently…

Q: where are the other solutions?

A: Since first 3 subpart is already solved so i am solving next subpart i.e. (d),(e),and (f) We have…

Q: The following are ages in years of nine employees of a large company. 46, 22, 35, 26, 22, 53, 33,…

A: The question is about measures Given : Data : 46, 22, 35, 26, 22, 53, 33, 42, 59   To find : Mean…