A cellular phone service provider has determined the number of devices per account has a probability distribution as follows. X= #devices 1 2 3 4 5 Probability 0.19 0.49 0.01 ?? 0.1 Answer probabilities to 2 decimal places.

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Q: What is the total number of scores for the distribution shown in the following table?​ X    f 4…

A: given data  x f 4 1 3 3 2 7 1 2

Q: A researcher wishes to​ estimate, with 95​% confidence, the population proportion of adults who…

A: From the provided information, Confidence level = 95% Margin of error (E) = 0.01

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A: From the given information, 100 members of a hiking club are periodically evaluated for Lyme…

Q: The average daily rate of a hotel in Canada as of August 2018 was $172.85. Assume the average daily…

A: given data normal distribution μ = 172.85σ = 26.60

Q: if one score is randomly selected from a normal distribution with a population mean of 22 and a…

A: given data,normal distributionμ=22σ=16we have to find out the  probability of obtaining score…

Q: Where is the number of stores in that graph?

A: Year Number of stores UK & ROI Revenue Central Europe Revenue Tesco Bank Revenue Total Revenue…

Q: The weekly television viewing time of children aged 2 – 11 years is normally distributed with a mean…

A:

Q: Solution: 12 agu 13 15 16 23 ▬▬▬▬▬▬ 36 33 31 31 27 Stem 22 23 25 26 18 =83253 del 13 13 ▬▬▬▬▬▬ 25…

A: Given: 12 13 15 16 23 36 33 31 31 27 22 23 25 26 18 38 13 52…

Q: (d) What is the p-value from the simulated distribution of sample statistics? .0857 O.2238 O.0091…

A:

Q: A two-tailed hypothesis test is being used to evaluate a treatment effect with α = .05. If the…

A: Given data: Significance level= 0.05 Z score = 1.65 Two tailed test

Q: Find a value of c so that P(Z ≤ c) = 0.65.

A: According to the given information in this question We need to find the value of c

Q: 12. Suppose that it is known that P(A/B) = 0.21, P(A) = 0.69, and P(AUB) = 0.13. (a) Find P(An B).…

A: ∪ ∩ P(A|B) = 0.21 P(A')=0.69 P(A) = 1- P(A') = 0.31

Q: The shape of the distribution of the time required to get an oil change at a 20-minute oil-change…

A: Given that.   X~N( μ , ?)   μ=21.3    , ?=3.1   Z-score =( x - μ )/?

Q: 8. An allegedly psychic animal's feeding behaviour is used to predict outcomes of eight soccer…

A:

Q: A study concluded that among people with a certain virus, 99.2% of tests conducted were (correctly)…

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Q: When she was 9 years of age, a girl did a science fair experiment in which she tested professional…

A: given data,n=247 trials x= 105α=0.10p^=xn=105247=0.4251here p=q=0.5

Q: 27) The probability that z lies between 0.7 and 1.98

A: GIVEN DATA  standard normal distributionZ~N(0,1)find P(0.7<z<1.98) = ?

Q: The critical value are r= ____________________ (Round to three decimal places as needed. Use a…

A: The linear correlation coefficient (r) measures the strength of relation between two variables and…

Q: If z is a standard normal variable, find the probability. 26) The probability that z is less than…

A: standard normal distribution μ = 0σ = 1Z~N(0,1)find P(Z<1.13) = ?

Q: A  =  {E2, E4} B  =  {E1, E3} C  =  {E1, E4, E5} P*A=0.4 P*B=0.4 P*C=0.6 P(A U B)=0.8 Find  AC.…

A: Solution-: Given:  A={E2,E4} B={E1,E3} C={E1,E4,E5} We want to find  (a) Ac=? (b) Cc=? (c) A∪Bc=?

Q: The dataset of NYREFORM is below and the case entitled “A Bipartisan Agenda for Change” (attached).…

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Q: Why n-1 is used in the denominator for the variance for a normally distributed continuous RV

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Q: Given that X is a continuous random variable that has a uniform probability distribution, and 0 < X…

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Q: Find a value of c so that P(Z ≤ c) = 0.74.

A: Find a value of c so that P(Z ≤ c) = 0.74.

Q: Assume that a normal distribution of data has a mean of 19 and a standard deviation of 2.Use the…

A: given data,normal distribution μ=19σ=2according to emperical rule 68%,95% and 99.7% data fall within…

Q: Part: 1/3 Part 2 of 3 Part: 2/3 (b) Compute the sample standard deviation for the number of…

A: Given that We have to find  a...Sample standard deviation Mississippi River East  b.. sample…

Q: In a sample of 1000 U.S. adults, 213 think that most celebrities are good role models. Two U.S.…

A: Given that: Sample size, n=1000 Number of US adults think most celebrities are good role models =…

Q: 3) Find the standard deviation, o, for the binomial distribution which has the stated values of n…

A: given data  n = 503 p = 0.7 binomial distribution  standard deviation(σ) = ?

Q: Suppose X~ N (23, 4). Between which two numbers would the middle 94% of all X values fall? Between…

A: given data normal distributionx~N(23,4)μ = 23σ = 4

Q: = A population of values has a normal distribution with u to draw a random sample of size n = 179.…

A: Answer:- Given, X ~ N(μ,σ)                Where, μ = 245.3, and σ = 80.6                The sample…

Q: A sample score of n=9 is randomly selected from a population with a population mean of 50 and a…

A: GIVEN DATA,n=9μ=50σ=24M=80z score =? 80-

Q: Based on a survey, assume that 43% of consumers are comfortable having drones deliver their…

A: It is given that the 43% of consumers are comfortable having drones deliver their purchases.

Q: Solution: Class Total 15 16 16 17' 18 19 Tally 19 20 20 21 20 21 22 22 23 Class Boundaries 23 23 23…

A: The question is about frequency distribution Given :   To find : To construct frequency table

Q: Mr. Gray's quiz was normally distributed with a mean of 25 deviation of 10. Find the z-score for ONE…

A: Hello! As you have posted 3 different questions, we are answering the first question. In case you…

Q: a normal distribution has a mean of 25 and standard deviation of 5. what score separates the lowest…

A: Let random variable X be the scoreX has normal distribution with mean(μ)= 25 and standard…

Q: Q5 Suppose that X₁ and X₂ have a joint pdf zero otherwise. f(x₁, x2) = (2/3)(x₁ + 1), for 0 < x₁ <…

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Q: Average adult Americans are about one inch taller but nearly a whopping 25 pounds heavier than they…

A: According to the given information in this question We need to apply z test for one population mean

Q: 2) In a certain town, 22% of voters favor a given ballot measure. For groups of 21 voters, find the…

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Q: What is the value of the pooled-variance tSTAT test statistic for testing Ho: μ1 = H₂? -TAT = 4.93…

A: given datx¯1 = 44s1 = 6n1= 7x¯2 = 32s2 =5n2 = 15α = 0.0500

Q: Let p be the population proportion for the following condition. Find the point estimates for p and…

A: Given that : In a survey of 1289 adults from country​ A, 273 said that they were not confident that…

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of​ adults, and those…

A: Given,mean(μ)=100standard deviation(σ)=15

Q: x = number of people in the sample of 10 that have a food allergy. Find the following probabilities.…

A: Given : Sample number=n=10 7% adult Americans have food allergy.   Please upvote if you liked my…

Q: Use the Poisson Distribution to find the indicated probability. 17) If the random variable x has a…

A: GIVEN DATA poisson distribution P(x=X) = e-λλxx!μ = λ = 0.693P(x=4) = ?

Q: In a group of 35 Virginia residents, 28 Maryland residents, and 23 Delaware residents, two people…

A: In a group;total residents = 35+28+23 = 86 35 Virginia residents, 28 Maryland residents, and 23…

Q: What is the mean for the probability experiment that the first one shows up on 5throll, when rolling…

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Q: ms 1 and 2, draw/sketch a scatter plot that represents the data. Then use your calculator to find…

A: Given: Age (x) Number of words (y) 1 15 2 220 3 540 4 1100 5 2100 6 2600 3 730…

Q: Consider a statistical experiment where you flip two coins and you are interested in how many heads…

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

Q: The life spans of a species of fruit fly are normally distributed with a mean of 36 days and a…

A: Suppose a random variable x defines the life span of a species of fruit fly.