USA Today reported that about 20% of all people in the United States are illiterate. Suppose you take eight people at random off a city street.   (a) Find the mean and standard deviation of this probability distribution. (Round your answers to two decimal places.) ? =  people ? =  people Find the expected number of people in this sample who are illiterate. (Round your answer to two decimal places.)  people (b) How many people would you need to interview to be 73% sure that at least seven of these people can read and write (are not illiterate)? (Enter the smallest number of people needed to be at least 73% sure.)  people

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A: Here, we are asked to find the square of a number between 1 and 1000 and look at its last digit. To…

Q: (a) What probability distribution would you use to test the hypothesis that both signers have the…

A: Given,the average rating for two star singers along with their standard deviations.To formulate the…

Q: In the introductory statistics class, there are 15 females and 10 males. Two students are selected…

A: Solution: From the given information, there are 15 females and 10 males. Total number of students is…

Q: Can you please help me interpret this data?

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Q: The following table shows the probability of a cellular phone company. What is the standard…

A: Solution

Q: Consider a probability histogram for the number of times I win if I bet $5 on even numbers in…

A: Given a probability histogram for the number of times winning if a person bet $5 on even numbers in…

Q: b. What is the probability that the sample mean is less than-12? (Round final answer to 4 decimal…

A:

Q: . Which probability is relevant for determining whether 4 is a significantly high number of…

A: From the given information, X  P(X) 0  0.187 1  0.407 2  0.258 3  0.119 4  0.028 5  0.001

Q: 3. A surgical technique is performed on ten patients. You are told there is an 83% chance of…

A: Givenn=10p=0.83

Q: a. What is the distribution of X? X N( 62 11 b. What is the distribution of ? N( c. If a single…

A: Since you have posted a question with multiple subparts, we will solve the first three complete…

Q: Assume that 11% of Douglas College students are left-handed. Suppose you randomly select 100…

A: Given that n= number of observation= 100 p= probability of success= 11%=0.11 since each trial is…

Q: You randomly sample 300 graduating seniors and 40 indicate that they are going straight to graduate…

A:

Q: 15 25 35 45 55 P(x) 0.05 0.35 0.25 0.05

A: Given : x 15 25 35 45 55 P ( x) 0.05 0.35 0.25 0.05

Q: 3.18 Steph Curry is a 91% free throw shooter. He decides to shoot free throws until his first miss.…

A: Given,p=0.91

Q: L10Q4.Find the missing number from the given probability distribution table.

A:

Q: probability distribution

A:

Q: Suppose that the commuting time on a particular train is uniformly distributed between 50 and 70…

A: (D) Let X denotes the commuting time on a particular train and it follows uniform distribution on…

Q: The probability they are Female AND got Over a 3.0?  _____________ use 4 decimals   The…

A: Solution: The tabular information given in the question is:   Over 3.0  2.0 - 3.0  Under 2.0…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A:

Q: Interpret the mean. Select the correct choice below and fill in the answer box to complete your…

A: Data is given for  y and its corresponding probability We have to calculate mean and standard…

Q: thank u

A:

Q: QUESTION 2 It is known that 30% of adult females are experiencing sleep disorder If 17 adult females…

A:

Q: The number of inches of rain that fell during the month of April was recorded over time.  The number…

A: a) Total number of years = 4+13+21+10+2=50 years.  To find probabilities we divide all frequencies…

Q: 4.21 The probability of an electronic sensor malfunctioning is known to be 0.10. A random sample of…

A: The following information has been given: n=12p=0.10 The binomial probability distribution formula…

Q: 1. 66 students were surveyed about pet ownership. They were asked if they own a dog or cat. 24 said…

A: Venn diagram helps to visualize the finite groups. It explains the similarity and dissimilarity…

Q: What is the probability that the average attendance at the games in a sample of 50 will be above…

A:

Q: You can use the random number table to simulate outcomes from a given discrete probability…

A: You can use the random number table to simulate outcomes from a given discrete probability…

Q: You flip a fair coin n times and calculate the relative frequency probability of heads as  number of…

A: here use basic of rule of large number

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.42%. A random sample of 33 of…

A: Given that  Mean percent of childhood ashthma prevalence =2.42%                      =0.0242 Sample…

Q: According to Reader's Digest, 50% of primary care doctors think their patients receive unnecessary…

A: Given: 50% of primary care doctors think their parents receive unnecessary medical care. That is,…

Q: 2 dice are rolled and the discrete variable x counts the number of 3's that appear. Plot the…

A:

Q: You roll 2 4-sided dice and record the total of the possible sums. Let X represent the total. (Hint…

A: Given information: You roll 2 4-sided dice and record the total of the possible sums. Let X…

Q: 65% of the dogs in the competition run at the Excellent or Master’s level. Suppose 20 dogs are…

A: From the provided information, 65% of the dogs in the competition run at the Excellent or Master’s…

Q: Construct all random samples consisting of three observations from the given data. List all the…

A: Given Information: No. of samples (x)=05 Let, x1=83x2=86x3=89x4=92x5=95

Q: Example 8 In a particular university, the probability that any one student is male is 0.65. Four…

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

Q: Your company makes 2000 sports bikes. The probability that a sport bike passes inspection is 92% 5.…

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

Q: C) IfI want my estimate to be accurate, I want the error of p,, to be small. N Approximately, how…

A: Given information: N = Total number of people polled N. p^N=Number of people polled who supported…

Q: 140 characters A 2014 survey suggests that 71% of U.S. teenagers use Facebook, 33% use Twitter, and…

A: given data  event A : use facebook event B : use twitter P(A) = 0.71 P(B) = 0.33 )(A∩B) = 0.15…

Q: Based on the following table someone tells you “If you don’t use drugs, then the probability of you…

A: The total negative test is 860+6=866 we have to find those who don't use drugs and getting negative…

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.