O 00 The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $5 each and will sell 800 tickets. There is one $2,000 grand prize, four $400 second prizes, and eighteen $10 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent. Question Help: Written Example Message instructor Submit Question Jump to Answer 13 43,522 MAR ese 08

Q: A survey was conducted by graduate students to investigate the current situation of students in Iraq...

A: Since you have posted multiple questions, as per our guidelines we have answered only 1 question. Pl...

Q: Scores on an intelligence test for the age group 20 to 34 are approximately normally distributed wit...

A: Let X be the random variable from normal distribution with mean (μ) = 110 and standard deviation (σ)...

Q: A local news outlet reported that 56% of 600 randomly sampled Kansas residents planned to set off fi...

A: We have given that,  Sample proportion (p̂) = 56% = 0.56 and sample size (n) = 600 Then,  We will fi...

Q: The price of a commodity increased by 5% from 2014 to 2015, 8% from 2015 to 2016 and 77% from 2016 t...

A:

Q: Cumplotionl Status Research paradigms and approaches with a recap on research reasoning and purposes...

A:

Q: Example 5-1. A random variable X has the following probability function: Values of X, x : 1 3 4 7 p(...

A:

Q: For a population with  = 150, a raw score of X = 125 corresponds to z = -2.00.  What is the standard...

A: Consider that the mean and standard deviation of a random variable x are µ and σ, respectively. Thus...

Q: (3) The time it takes a new student to complete advising and registration time follows normal distri...

A: Given,sample size(n)=36mean(μ)=45standard deviation(σ)=20

Q: A sample of size n= 55 is drawn from a normal population. The sample mean is x 56.6 and sample stand...

A: Sample size (n) = 55 Sample mean (x̅) = 56.6Standard deviations (s) = 9.2Significance level (α) = 1 ...

Q: Example 5-2. If, p(x) = { 15ix = 1, 2, 3, 4, 5 (0, elsewhere Find (i) P {X = 1 or 2), and (ii) P{1}.

A: given; probability density function of X;p(x)=x15x=1,2,3,4,5 0elesewhere

Q: Prehistoric pottery vessels are usually found as sherds (broken pieces) and are carefully reconstruc...

A: Note: As per guidelines only first 3 subparts have been answered if you need answers for the rest of...

Q: A sample has a mean M = 55. For the sample, the standard deviation is ? = 12 and the score correspon...

A:

Q: A farmer wants to compare the tastiness and juiciness of tomatoes grown with three amounts of a new ...

A: Please see the solution below

Q: B. Solve for: 1. Mean 2. Median 3. Mode 4. Variance 5. Standard Deviation

A: The objective is to obtain mean,median,mode,variance SD. for given data .

Q: Prove the reproductive property of independent Poisson RVs. Hence find the probability of 5 or more ...

A:

Q: 2. Clara decided to give slippers to the street children. The slipper sizes of the children are norm...

A:

Q: 36. Packages of Lay's Potato Chips have a population standard deviation of 0.16 ounces. An SRS of 10...

A: We have given that,  Population standard deviation (σ) = 0.16, sample size (n) = 100 and sample mean...

Q: : 1460, 1550, 1600, 1620, 1640, 1660, 1740, 1820 D : 1510, 1520, 1530, 1570, 1600, 1680 Perform an a...

A:

Q: Events A and B are independent. Find the missing probability. 5; P(A°) =- 11 ΡΑΛ Β ) = 20 9 P(B)=? 5...

A: GivenP(Ac)=1120P(A∩B)=950Events A and B are independent

Q: Calculate the standard deviation from the data given below : Size of item Frequency Size of item Fre...

A: We have given that,  X :- 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5 f :- 3, 7, 22, 60, 85, 32, 8 Then,  We w...

Q: Given : Total of the product of deviations of X and Y series 3,044 Number of pairs of observations 1...

A:

Q: A group of students in your intro stats class design an experiment to test whether popcorn stored in...

A:

Q: Following are temperature (x) in centigrade recorded in a certain city - 10, 8, -6, -8, 6, 10 i) Fin...

A:

Q: For any continuous probability distribution, P(x = a) = 0 for all values of a. %3D O A. True O B. Fa...

A: Solution:   Here we have given that an statement about a continuous probability distribution.

Q: You roll a six-sided die. Find the probability of each of the following scenarios. (a) Rolling a 4 o...

A: Given a six-sided die is rolledThen the outcomes are(1,2,3,4,5,6)

Q: Assume that x has a normal distribution with the specified mean and standard deviation. Find the ind...

A: Let X be the random variable from normal distribution with mean (µ) = 13.4 and standard deviation (σ...

Q: High temperatures in a city for the month of July follow a uniform distribution over the interval 70...

A: Solution-: Given: a=700F, b=930F We find, P(the high temperature on a day in July is less than 820F)...

Q: Ise the following data, which represent the English placement test scores of a sample of 30 students...

A: Here we have to construct frequency distribution of a given data with a first class of 472-492.

Q: the yields of a genetically-modifed wheat in bushets per acrei were compared tor thve different vari...

A: The Given data is,  Variety  1 2 3 4 5 6 A 35.3 31 32.7 36.8 37.2 33.1 B 30.7 32.2 31.4 31.7...

Q: A certain experiment produces the data (1, 7.9), (2, 5.4), (3, -0.9). Describe the model that produc...

A:

Q: Example 5-1. Values of X, x : random variable X has the folloving probability function: 1 3 4 7 p(x)...

A:

Q: The 90% confidence interval is _________, _______________ (round to 2 decimal places) The 95% confi...

A:

Q: Continuous random variables that appear to have equally likely outcomes over their range of possible...

A: Given:  A continuous random variable taht is equally likely outcome over thier ranges of possible va...

Q: If the size of a sample is 64 and standard error of mean is 1.5.What should be the sample if standar...

A:

Q: Suppose X is a binomial random variable with n = 200 and p = 0.4. %3D (Use normal approximation. Rou...

A: Givenn=200p=0.4x~Binomial(n=200,p=0.4)P(X=x)=(nx)×px×(1-p)n-x   ; x=0,1,...,n

Q: (3) The time it takes a new student to complete advising and registration time follows normal distri...

A: Given that Mean(µ) = 45Standard deviations (σ) = 20 Sample size (n) = 36 x̅~ N (µ, σ/√n )= N (45, 20...

Q: A sample analysis of examination results of 500 students was made. It was found that 220 students ha...

A:

Q: Example 1 The mean height of 45 students ofa class is 60" and the mean height of 55 students of anot...

A: given  n1=45, x̄1=60, n2=55, x̄2=57  

Q: Given a normally distributed set of scores with mean μ = 86.5 and standard deviation σ = 11.4, deter...

A:

Q: 2. Problem: Random variables X, Y, Z follow the following rule: Z|X Y is N(u = XY, o? = (X+Y)2), whe...

A:

Q: Example 2 Three groups 40, 50 and 10 students have average scores in mathematics as 60, 40 and 55 re...

A: n1=40, n2=50, n3=10  x̄1=60, x̄2=40, x̄3=55   

Q: EXERCISE 4.2 1. 15, 33, 30, 50, 0 2. –4, 25, –4, 11, 19, 4 Find the (a) sample variance and (b) samp...

A: Concentration of all the values around the central value of the given data is known as measures of c...

Q: B. Using the Z-TABLE, find the area of the following: (2 point each number) 1. z =0 to z = 2.23 2. z...

A: As per bartleby guideline expert have to answer first three subpart only dear student please upload ...

Q: We use the form ŷ = a + bx for the least-squares line. In some computer printouts, the least-squares...

A: Solution:  We have given that  Elevation is  listed under  predictor. This means that elevation is t...

Q: The following data pertain to the marks in subjects A and B in a certain examination. Mean marks in ...

A:

Q: Find z such that 6% of the standard normal curve lies to the right of z. (Round your answer to two d...

A: Required probability is P(Z>z0)=0.06

Q: Find Link relatives for the following price Relatives Year 1980 1981 1982 1983 1984 Price Relatives ...

A: Index numbers are used to measure the change of price over a period of time. There are two types of ...

Q: Example 1 Find index numbers for the years 1973, 1974 and 1975 from the following d taking 1972 as b...

A: The price change over the period of time is calculated using the index number. It is broadly classif...

Q: You witnessed the following sequence of outcomes from an experiment (where each individual letter is...

A:

Q: Assume that x has a normal distribution with the specified mean and standard deviation. Find the ind...

A: GivenMean(μ)=4standard deviation(σ)=6