Tickets for a raffle cost $5. There were 847 tickets sold. One ticket will be randomly selected as the winner, and that person wins $2000 and also the person is given back the cost of the ticket. For someone who buys a ticket, what is the Expected Value (the mean of the distribution)?If the Expected Value is negative, be sure to include the "-" sign with the answer. Express the answer rounded to two decimal places.Expected Value = $

Q: Gabriel and Lucia took a road trip across the country. The room costs, in dollars, for their…

A: According to the given information, we have Data set: "…

Q: Carol and David want to estimate the mean amount of time people spend at their local shopping mall.…

A: The following information has been given: Carol's sample: 38, 115, 68, 47, 25, 51, 32, 95 David's…

Q: Q1. Choose the correct answer 1. The level of measurement of the variable "milk yield in kg" is: b)…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Find the mean, median, and mode of the data. Heights of Students in Class +||| ||H|| 十王 60 62 64 66…

A: From the given dot plot, the data values are 60, 64, 65, 65, 66, 67, 67, 67, 69, 69, 70, 72, 72, 74,…

Q: A professional basketball player typically attempts 8 free throws per game. Let X represent the…

A: To find the median of the distribution, you'll first need to arrange the outcomes in ascending order…

Q: tests, a term paper, and a final examination. Each test counts as 15% of the course grade. The term…

A:

Q: Solve In R programmning language: Suppose we know that the birth weight of babies is Normally…

A: Given  μ=3500, σ=500 P(X>3100)= ?

Q: Use the confidence interval to find the margin of error and the sample mean. (.228, 0.390)

A: We know that the Margin of error = (upper_limit - lower_imit )/2 and Sample mean = (upper limit +…

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A: The given situation follows binomial distribution. The proportion of people born in United States…

Q: The final exam scores for Mr. Allen’s class are shown below. 56, 59, 60, 65, 71, 72, 74, 80, 80, 83,…

A: Given observation and calculation is shown below Score 2*score 56 112 59 118…

Q: For Roger Maris 14 homerun seasons of 5,  8,  9,  9,  13,  14,  16,  19,  23,  26,  28,  33,  39,…

A: To find the percentile

Q: The weights of steers in a herd are distributed normally. The standard deviation is 200lbs. and the…

A: Let "X" be the weight of steers in a herd.

Q: find the mean for the following set of scores 2 7 9 4 5 3 0 6

A: The formula for calculating the mean is, The sum of  set of scores is,

Q: THE RANGE OF SCORES 17,19,19,23,26

A: We know that the range is the difference between the maximum and minimum value.

Q: Find the mean and median of the class’s scores on this quiz. Round to two decimal places when needed

A: Given that  From histogram  X-axis takes X values and Y-axis takes Frequency  X Frequency = f 1…

Q: The mean weight of a class of 35 students is 45 kg. If the weight of the teacher be included, the…

A: Given, The mean weight of a class of 35 students is 45 kg.

Q: A professor grades students on four tests, a term paper, and a final examination. Each test counts…

A:

Q: Use a standard normal table to find the z-score that corresponds to the 5th percentile. Click to…

A: Answer:- Here we need to find the Z-score that corresponding to the 5th percentile.That is, we need…

Q: Baseball team A of n=7 scores has a mean = 8.  Baseball team B of n=3 scores has a mean = 12.  if…

A: From the provided information,

Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual…

A: It is given that the IQ scores follow normal distribution with mean 100 and standard deviation 15.…

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A:

Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

A: Given: X¯1=77n1=259X¯2=90n2=344X¯3=66n3=171

Q: Name Lois Chris Meg Peter Brian Stewie Exam1 57 46 45 18 98 96 Exam2 70 42 58 99 90

A: Given that,the mean of exam 2 is  65.Exam 1 and Exam 2 scores are given:NameExam 1Exam…

Q: Emma loves Butterfinger bars and recently ate a bar that only weighed 58 grams. Based on the…

A: P (z < -1.67) = 0.0478Explanation:z = (x - µ)/σ = (58 - 60)/1.2 = -1.67 P (z < -1.67) = 0.0478…

Q: Determine whether the statement is true or false. If it is false, rewrite it as a true statement. As…

A: It is needed to explain whether the mean of the distribution of sample means changes if sample size…