Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 11 19 20 Female 10 17 3 Total 21 36 23 50 30 80 If one student is chosen at random, Find the probability that the student was male OR got an "C".

Q: A radio device consists of 1000 electronic elements. The probability of nonoperation for one element…

A: Assuming that the random number X of non operating elements obeys poisson's law…

Q: A radio device consists of 1000 electronic elements. The probability of nonoperation for one element…

A:

Q: a circumference arcsine law) 1 The projection X of the radius-vector of a random point on of radius…

A:

Q: Determine (a) the probability that X will be on the interval (-a/2, a/2), (b) the quantile x0.75,…

A: As per bartlby guidelines we can answer only first three subpart and rest can be reposted

Q: c) About 52% of the residents of Capricorn municipality are happy and 48% of the residents are not…

A: Given P(happy) =0.52 P(not happy) =0.48 P(Favour |happy ) =0.75 P(Favour |not happy ) 0.25

Q: Find the value of the test statistic z using z = The claim is that the proportion of drowning deaths…

A: Given that: Sample size, n = 681 Population proportion, p = 0.25 Sample proportion, p^=0.30

Q: The lengths of adult males' hands are normally distributed with mean 193 mm and standard deviation…

A: Probability distribution

Q: The American Automobile Association claims that the average daily cost for meals and lodging for…

A: We have given that Sample mean (x̅1) = 218Sample mean (x̅2) = 208Sample size (n1) = 35Sample size…

Q: A radio device consists of 1000 electronic elements. The probability of nonoperation for one element…

A: Given,n=1000p=0.001λ=npλ=1000×0.001=1A random variable X~Poisson(λ=1)P(X=x)=e-11xx!  ;    x≥0

Q: Coffee: The National Coffee Association reported that 65% of U.S. adults drink coffee daily. A…

A: (c) The objective is to determine the probability that more than 66% of the sampled adults drink…

Q: 4.22. A distribution for time-to-failure processes by a failure rate that does not vary…

A: Need a answer of question 4.22.

Q: ater taxi carries passengers from harbor to another. Assume that weights of passengers are normally…

A:

Q: Let X be a continuous random variable with p.d.f. f(x) and distribution func Y = X², (a) what is the…

A: Given information: Let X be a continuous random variable with pdf f(x) and the distribution function…

Q: X₁, X2,..., X5 be a random sa test for

A: Given: X1,X2,...,X5 be the random sample from beta. To find UMP.

Q: The effectiveness of a blood pressure drug is being investigated. An experimenter finds that, on…

A: ANS GIVEN                    Average  (X¯) =47 ,  sample  size (n)=15,   standard deviation(s)=18…

Q: A Business has six customer service telephone lines. Let x denote the number of lines in use at any…

A: As per our guidelines we are suppose to answer only three sub parts. Required probability is P(X≤3)

Q: 5.6-12. At certain times during the year, a bus company runs a special van holding 10 passengers…

A: Given  No of passengers=10. Time between sales of tickets for the trip has gamma distribution.…

Q: According to the U.S. Department of Agriculture, Alabama egg farmers produce millions of eggs every…

A: Obtain the mean egg production by Alabama farmers. The mean egg production by Alabama farmers is…

Q: Question In a recent marathon with two races, 24,521 people in the first race finished and 283…

A: Given:   i) n1 = 24521+283=24804 x1 = 24521 ii) n2 = 12853+152 = 13005 x2 = 12853  Significance…

Q: The heights of adult men in America are normally distributed, with a mean of 69.1 inches and a…

A: Given that.   X~N( μ , ?^2 )   Z-score =( x - μ )/?

Q: An experiment is conducted to determine the relationship between the amount of a certain drug in the…

A:

Q: teacher will pick one student at random from 25 for the lead in a play what is the probability of a…

A: Given A teacher will pick 1 student at random from 25 for the lead in a play

Q: The following data is used in correlation analysis. X- {10, 11, 5, 7, 8, 9} and Y- {12, 14, 9,9 10,…

A: As per our guidelines we are suppose to answer only question. X Y X.Y X2 Y2 10 12 120 100 144…

Q: Given are the set of Y (price) and X (demand) of a certain commodity. X- {9,7,8,9,3,2} and Y-…

A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: let X denote a random variable that has a Poisson distribution with mean y = 3 find p(x≥4/x≥2)

A:

Q: (b) If you conduct a hypothesis test at the 0.09 significance level and calculate a P-value of 0.13,…

A: It is given that  The null and alternative hypotheses are  H0: μ = 59.9 H1: μ > 59.9

Q: orrelation function:

A: Given as, Rx 0=3, Rx ±1=2, Rx ±2=1, Rx l=0, l>2

Q: Central Limit Theorem for Sums Suppose random samples of n = 38 are collected from an unknown…

A: Givensample size(n)=3Mean(μ)=60standard deviation(σ)=3

Q: c. The middle 40% of indoor cats' age of death lies between what two numbers? Low: years High: years

A: Let X= the age at death of randomly selected indoor cat Mean=12 years  Standard deviation=2.7 years…

Q: Determine if there is enough to infer that the population mean is not equal to 50, given that sample…

A:

Q: Tech is playing State in the last conference game of the season. Tech is trailing State 21 to 14…

A: Given:  Payoff of $9.2 million. payoff of $1.5 million. Two points of there is a 30% chance it will…

Q: The mean number of minutes for app engagement by table use is 8.2 minutes. Suppose the standard…

A: Given: μ = 8.2 minutes σ = 1 minute n = 70 Formula Used: Z-score = ∑X-(n)(μ)(n)(σ)

Q: Graph the following observations of x and y 13 38 Determine the straight line that fits these data.…

A: Regression: The regression analysis is conducted here by using EXCEL. The software procedure is…

Q: Find the indicated probabilities using the geometric​ distribution, the Poisson​ distribution, or…

A: Solution Given That, Fifty-four percent of adults say that they have cheated on a test or exam…

Q: On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of…

A:

Q: arks obtained by a number of students are assumed to be normally distributed with  mean 50 and…

A: Given Population mean μ=50,  Population variance= σ2=36 n=4,  X~N(μ=50, σ2 =36) Farmula used:…

Q: 2. A case of softdrinks has 12 bottles, three of which contain less than what is labeled per bottle…

A: (a)

Q: Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a)…

A: We have given that,  Sample mean x̄ = 29.4, sample standard deviation (s) = 7.5 and sample size (n)…

Q: The mean annual cost of automobile insurance is $939. Assume that the standard deviation is a =…

A: GivenMean(μ)=939standard deviation(σ)=245sample size(n)=50

Q: Suppose that the newborn weights are normally distributed with a mean of m kg and a standard…

A: We have given that  Mean(µ) = mStandard deviations (σ) = 0.8

Q: b) Given A and B are independent events, with P(A) = 0.50 and P(B) = 0.30. Find P(ANB)

A:

Q: The table below lists the frequency of wins for different post positions in a horse race. A post…

A: Solution-: α=0.05 Hypothesis: H0:Wins occur with equal frequency in the different post positions. Vs…

Q: Contingency Tables and Conditional Probability: Homework and Passing a Course A teacher categorized…

A:

Q: www.helpyourmath.com is an OER website to help students to save money on textbooks and homework…

A: The sample mean is 122 and the sample standard deviation is 17.

Q: Consider 2 sorted lists of size 50 and 60 respectively. Find the number of comparisons needed in the…

A: Given  Two sorted list of size 50 and 60 respectively. We need to determine the number of…

Q: A cafe´ serves four types of bread roll, and each roll contains one of four fillings. The…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Academic Performance 0 to 9 10 to 19 20 to 29 30 to 39 40 to 49 50 to 59 60 to 69 70 to 79 80 to 89…

A: Frequency are used to measure the count of the larger data set. It also used to understand the…

Q: According to a company's website, the top 10% of the candidates who take the entrance test just been…

A: 10% of candidates take entrance test The reported mean and standard deviation is 69 and 8 μ=69σ=8

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4.6…

A: Given: Mean μ=4.6 Standard deviation σ=0.9

Q: Brand Samsung Samsung Samsung Samsung LG LG LG Warranty Yes Yes No No Yes Yes No Price 250 300 250…

A: Brand Samsung LG Warranty Yes No Price 250 300   Brand Warranty Price…