A random number generator picks a number from 1 to 21 in a uniform manner. Round all answers to two decimal places. A. The mean of this distribution is=___________________ B. The standard deviation is=______________ C. The probability that the number will be exactly 15 is P(x = 15) =_____________

Q: 2 The following are test scores of the first quarterly exam in Statistics and Probability. Find Q,…

A: For the given data Find Q1,Q2 and Q3

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A:

Q: 50, 1.5, -2.5, -.25,-.5, 1.25

A: given data, normal distributionμ=60σ=12value of X for the given z -scores=?

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A: Given: Total number of boxes of cereal = 2170 On average prizes = 12 Probability of success p =…

Q: None

A: Step 1:Given data : Sample size n=49Sample mean xˉ=490Sample standard deviation s=98 Step 2:we need…

Q: X P(=x) 0 0.05 1 0.05 2 0.2 4 0.3 5 0.2 6 0.1 7 0.1     What is the expected numer of times a…

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A: Here it is given that the mean of the time it takes for a product to arrive from China is 60 days…

Q: A-3. The daily revenue at a restaurant in London has been recorded for the past several years.…

A: The provided information is  µ=10000σ=1500 Then, a. C. Normal

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A:

Q: Suppose Diane and Jack are each attempting to use a simulation to describe the sampling distribution…

A: Mean = 70Standard deviation = 5Diane's n = 3Jack n = 40

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Q: he day of the week for which 777 randomly selected fatal bicycle accidents occure hat the…

A: Applying Chi-square test, Expected frequency (E) =  Total/n  = 777/7 = 111 Chi-square test statistic…

Q: c. The probability that the the child will be older than 5 years old? 0.8571 d. The probability that…

A: given data, uniform distributionX~U(4.88 , 5.72)age is  between 4.88 and 5.72 years old

Q: D.The probability that the number will be between 4 and 8 is P(4 15) = F. P(x > 5 | x < 11) =____

A:

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A: We need to answer , Which of the scenarios below will produce the largest z score?  Group of answer…

Q: n 1940 the average size of a U.S. farm was 174 acres. Let's say that the standard deviation was 59…

A: Given that μ=174, σ=59 n=46 Distribution of X¯: X¯~Nμ,σnX¯~N174,5946X¯~N174, 8.70

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A: The given data is as follows:43, 39, 39, 36, 44, 33

Q: The value of the test statistic is (Round to two decimal places as needed.)

A: Claim Most adults would erase all of their personal information online if they could. A software…

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A: Given,  x1 = 185,  n1 = 10, s1 = 40x2 = 220,  n2 = 12, s2 = 15 α = 0.05 degree of freedom, n1+n2-2…

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Q: C. Given population 15, 12, 6, 9, and 17. Suppose samples of size 3 and 4 are drawn from this…

A: Given: The population is 15, 12, 6, 9, and 17.

Q: Suppose X is a random variable. How are the variance and standard deviation of X related? Select…

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A: As, we know that larger the size of population,  larger the variability in the population,  if we…

Q: v 40. For a group containing 100 observations, the arithmetic mean and standard mean and the…

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Q: The population mean and standard deviation are given below. Find the required probability and…

A: note - Hi! Thank you for the question, As per the honor code, we are allowed to answer one question…

Q: Use the following information to answer problems 13 and 14. Cholesterol levels among 14-year-old…

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Q: Driver’s Education. In order to determine whether or not a driver’s education course improves the…

A: Score After (x1): n=7 Mean(M1)= (92+86+...97)/7 M1 =90.71 df1=n-1 = 6   Score After (x2): n=7…

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Q: Mean? * X 1 234 5 Your answer P(X) 0.238 0.290 0.177 0.158 0.137 This is a required question

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Q: Cost of Pizzas A pizza shop owner wishes to find the 95% confidence interval of the true mean cost…

A: Margin of error(E)=0.16Standard deviation()=0.48

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.