You buy a lottery ticket to a lottery that costs $10 per ticket. There are only 100 tickets available to be sold in this lottery. In this lottery there are one $445 prize, two $95 prizes, and four $20 prizes. Find your expected gain or loss. (Round your answer to two decimal places.)

Q: determine the level of measurement of Scores in a Board Exam

A: Nominal data: Nominal data measure qualitative data and it is the name of variable. Ordinal data: ...

Q: A researcher wants to estimate the mean blood cholesterol level of young men ages 15-25 with a 83.56...

A: Given that,  Confidence interval =83.56% Standard deviation=35 mg/dl We have to find the value of n

Q: The following is the frequency distribution of the lengths of students in centimeters tall categorie...

A: Frequency is the count of the observation has been occurred. The individual data has been counted an...

Q: research center daims that 29% of adults in a certain country would travel into space on a commercia...

A: We have given that  Sample size n =1200 Sample proportion p^=31% = 0.31

Q: 2) A class has seven students. What is the probability that exactly four of the students were born o...

A: 2)Givenn=7p=57    (students born on Monday through friday in 7 days)Let "x" be the no.of students bo...

Q: Problem 1.2: If you randomly pick a number from the set (2, 4, 7, 8, 9, 15, 17, 18}, what is the pro...

A:

Q: Studies have suggested that twins, in their early years, tend to have lower IQs and pick up language...

A:

Q: 5 15 14 6 6 16 7 8 20 8 15 15 9 18 10 10 15 14 Calculate the Pearson correlation coefficient.  Comp...

A: X:- 3, 5, 12, 12, 15, 6, 8, 15, 18, 15,  Y:- 19, 16, 15, 15, 14, 16, 20, 15, 10, 14 Then,  We will f...

Q: Let X, X,., X, be a random sample from a normal distribution, X, ~ N(6, 25), and denote by X and S² ...

A:

Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random sam...

A:

Q: Every day, Eric takes the same street from his home to the university. There are 4 street lights alo...

A: Given Information: When Eric sees the green light at an intersection then, The probability that the ...

Q: Part: 0 / 3 Part 1 of 3 (a) Assume that a histogram of the sample is bell-shaped. Approximately what...

A:

Q: sample of 18 pairs of observation from a normal population gives a correlation coefficient of 0.52. ...

A:

Q: Suppose that 20,000 married adults in a country were randomly surveyed as to the number of children ...

A: Let X be the random variable having probability mass function then we will find the expected value o...

Q: 25 items were placed on test and the test was terminated after a pre-assigned time to 20 hours from ...

A:

Q: A box contains 7 red, 3 green, and 2 yellow balls. If one ball is drawn from the box, then what is t...

A: Given,no.of red balls=7no.of green balls=3no.of yellow balls=2Total no.of balls=12

Q: For a two-factor ANOVA with two levels of factor A, two levels of factor B, and a separate sample of...

A: Given data n=8 The two means for  level A1 are 3 and 5 The two means for level A2 are 4 and 2

Q: . In a recent sample 145 of 300 students admitted to leaving their computer during an virtual lectur...

A: We have given that  Sample size n =300 Favorable cases x =145 Sample proportion p^=x/n  =145/300 =0....

Q: View Policies Current Attempt in Progress Thirty percent of law students who sit for a bar exam pass...

A: Given data,p=30%=0.30n=15P(Atmost 4)=?

Q: A minority representation group accuses a major bank of racial discrimination in its recent hires fo...

A: Given that p=0.12 Q=(1-p)=1-0.12=0.88

Q: Class Boundaries In each of the following write (a) lower and upper real limits (class boundaries) a...

A: In each of the following write  a) lower limits  17-18 17+182 =17.5 = 5+102 =7.5 25+282 =26.5 110+12...

Q: Suppose that we roll two dice, what is the probability of getting a sum of 6 or 8?

A: In rolling two dice, the possible outcomes are {(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,2),(2,3...

Q: Records show that 66% of employees at a high level research facility have a doctorate degree. If 14 ...

A:

Q: Illustration. 20.25. Two investigators study the income of a group of persons by the method of sampl...

A:

Q: Example 54. Calculate D, and P30 from the following data. Marks 20 25 30 35 45 No. of Students: 5 14...

A:

Q: Describe the distribution of sample means (shape, mean, and standard error) for  samples of n = 64 s...

A: We have given that, Population mean = 136, population standard deviation = 24 and sample size (n) = ...

Q: Two professors at a local college developed a new teaching curriculum designed to increase students'...

A: Given data in a typical development math course 49% of the students complete the  course with a lett...

Q: Use n= 10 and p= 0.35 to complete parts (a) through (d) below. (a) Construct a binomial probability ...

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

Q: Do you think it is reasonable to assume a statistically significant relationship between companies’ ...

A: Theoretical Question need explaination

Q: Which of the following describes a Type Il error for the hypotheses?

A: The type II error is defined as accepting the null hypothesis when the alternative is true.

Q: Age (yr) when award was won Frequency 5-9 28 10-14 34 15-19 20-24 25-29 30-34 12262.

A: Given: Age Frequency 5-9 28 10-14 34 15-19 12 20-24 2 25-29 6 30-34 2  

Q: A pharmaceutical company proposed a vaccine that would combat paralytic polio. Two independent rando...

A: Given data,n1=201229x1=100910n2=200745x2=50033 Construct 95% CI for p1−p2  

Q: 4. In a random survey of 1000 households in Unlad Province, it is found that 29% of the households h...

A: We have given that different problems related to population proportion z-test. Here, we need to find...

Q: illi. Graph A Graph B Graph C

A: We will tell you about shape of the graph.

Q: 25 items were placed on test and the test was terminated after a pre-assigned time to 20 hours from ...

A:

Q: A ballet instructor is interested in knowing what percent of each year's class will continue on to t...

A: Let X be the random variable having probability mass function then we have to complete the given abo...

Q: In an experiment on immunisation of catt from tuberculosis the following results were obtained: Affe...

A:

Q: Given two dependent random samples with the following results: Population 1 27 22 37 27 35 47 36 Pop...

A: Given information- We have given two dependent random samples is- We have to find the 98% confidenc...

Q: 92 85 55 76 52 10 64 75 78 25 80 98 81 67 41 71 83 54 64 72 88 62 74 43 60 78 89 76 84 48 84 90 15 7...

A: To create stem and leaf plot, we keep first digit in stem and another second digit in leaf.

Q: The random-number generator on calculators randomly generates a number between 0 and 1. The random v...

A: We have given that  X~Uniform ( a, b) a=0   , b=1 f(x) = 1/1   , 0 < x <1

Q: A test of the hypotheses Ho: u = 15 versus H.; p> 15 conducted using a sample of size 7. The test st...

A: Given that  H0:μ=15  Vs  H1:μ>15 Sample size=7 , Test statistics=t=1.935

Q: 3) Draw a Frequency Polygon, label clea horizontal axis, and draw the graph

A: Frequency Distribution Table A frequency distribution is a chart or table that shows how often possi...

Q: a) What is the probability that a randomly chosen light bulb lasts more than 10,500 hours? Round you...

A:

Q: A university cafeteria surveyed its customers for their coffee preferences. The findings are summari...

A: We have given that the data of university cafeteria surveyed its customers for their coffee preferen...

Q: Based on the figure: O A. The regular hourly wage rate equals $25.00. O B. The regular hourly wage r...

A: . B 2. A 3. A 4. C Explanation: Based on my inputs of the given data. 1. $230 - $100 = $130 16 - 9 =...

Q: Problem is given: Twenty people were attacked in London by a disease and only 18 survived. Will you ...

A:

Q: For a normal distribution curve with a mean of 15 and a standard deviation of 4, which range of the ...

A: Let X be the random variable from normal distribution with mean (μ) = 15  and standard deviation (σ)...

Q: A company wants to evaluate its attrition rate, in other words, how long new hires stay with the com...

A: Properties of probability distribution ,  1) The sum of probabilities is 1 i.e.  ∑ P(X = xi) = 1  2)...

Q: (a) State the appropriate null and alternative hypotheses. Ho: p = 0.49 versus H,: p > 0.49 (Type in...

A: We have given that  In a typical developmental math​ course, 49​%of the students complete the course...

Q: Find the total 8 digit numbers that can be formed using all the digits in the following numerals 557...

A: here given total digits 8 from which 8 digit number formed