o=58. From sample sizes of 36 adults find the proportion of sample means having values of at least 170.

Q: Random variables X and Y have the joint PMF with a constant k P(x, y) = }"0. Skxy, x = 1,4; y = 1,3…

A:

Q: Write the Sample space, outcome or event of the ff: 5. Choosing 2 letters from the word GREEN. Write…

A: formula used: let E=event of choosing two letters from the sample space and S denote the sample…

Q: A. Determine whether or not the two events are mutually exclusive, write (ME) if mutually exclusive…

A: Two events are said to be mutually exclusive, if there are no common elements in those events.

Q: Probability Trey has 12 marbles as shown in the diagram below. Each marble is either blue (labeled…

A: Given that  Total marbles=12 Yellow marbles=3 Red marbles=7 Blue marbles=2 Note: According to…

Q: Part 2: The graph below represents the relative frequency of heads that occur (number of heads…

A:

Q: In a poll of 1000 likely voters, 560 say that the United States spends too little on fighting hunger…

A: Givensample size(n)=1000x=560confidence interval=95

Q: 56. Fishing The probability that a fisherman catches a tuna in any one excursion is .15. What is the…

A: Let X be the random variable from binomial distribution with probability (p) = 0.15 and sample size…

Q: 8 The population of a country follows a normal distribution with mean height 175 cm and standard…

A: Given that.   X~N( μ , ?^2 )   μ=175    , ?=6   Z-score =( x - μ )/?

Q: An urn contains four balls; two of the balls are numbered 1, and the other two are numbered 2. Two…

A:

Q: Suppose that the weather in a certain city is either sunny, cloudy, or rainy on a given day, and…

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Q: Suppliers A and B have each sent us samples of 50 items to examine. We will choose between them to…

A: The following solution is given below:

Q: Write the Sample space, outcome or event of the ff: 2. A bag contains six identical balls: two…

A: Answer -  Given a bag contains 6 identical balls: 2 reds, 3 blues, and 1 yellow…

Q: Suppose that the amount of time one spends in a bank is exponentially distributed with mean 10…

A: Let X be the amount of time one spends in a bank follows exponentially distributed with mean of 10…

Q: the odds against the event happening?

A: here p = probability of event  = 88/89

Q: a. A camper entering the Camp Sinai is a cyclist? b. A cyclist entering the Camp Sinai is a camper?…

A: Here use venn diagram and Bayes rule

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 3.9…

A: Let X be the random variable from normal distribution with mean (μ) = 3.9 and standard deviation (σ)…

Q: A company launches 15 products, and each of them hasa 40% chance of being profitabile in S years. If…

A: Given that  n=15 , p=40%=0.40 , q=1-p=1-0.40=0.60 X~Binomial(n=15,p=0.40) X= Number of successful…

Q: 4. A university is offering two courses, one in Statistics and the other in Mathematics. These…

A: Number of students=300  Number of students in Statistics=85 Number of students im Mathematics=65…

Q: A person has a cough and flu-like symptoms and gets a PCR test for COVID-19, which comes back…

A: Sensitivity of a screening test can be define as the percentage of cases in which the test result is…

Q: Assuming a constant failure rate of 0.012 with an exponential probability distribution, if only a…

A:

Q: A game consists of spinning an unbiased, five-sided spinner which can land on A, B, C, D or E, and…

A: Given information: The five sided spinner which can land on A, B, C, D or E and unbiased die are…

Q: A wafer is randomly selected from a batch that is classified by contamination and location. a. The…

A: Given: A wafer is randomly selected from a batch that is classified by contamination and location.…

Q: After dinner at Viva Mexico in Juarez, a person has two options to cross the BOTA bridge to come…

A:

Q: Long Term Relative Frequency Number of 991 992 993 994 995 996 997 998 999 1000 Tosses Number of…

A: d) The actual number of heads given in the chart is 515

Q: Probability Trey has 12 marbles as shown in the diagram below. Each marble is either blue (labeled…

A: Given that  Total marbles=12 Yellow marbles=3 Red marbles=7 Blue marbles=2

Q: As the manager of a hedge fund, your yearly investment strategy entails a large “left-tail” risk…

A: As the manager of a hedge fund, your yearly investment strategy entails a large “left-tail” risk…

Q: There are 50. The teacher had only 20 free tickets for the Art Museum for this class. Therefore, the…

A: The intersection of two events indicate that two events are occurred simultaneously. If the two…

Q: A continuous random variable X that can assume values only between X = 2 and 8 inclusive has a…

A:

Q: For x = 1, 2, 3 and y = 1, 2, let the joint pmf of X and Y be defined by f X,Y (x, y) = (x+y)/21…

A: The joint probability mass function of X and Y is  f(x,y)=(x+y)/21   , x=1,2,3 and y=1,2

Q: Choose the correct answer below. O A. No, because in this situation the distribution is skewed to…

A:

Q: compute the probability of getting 6 or more questions correct out of 8 questions correct on the…

A:

Q: Activity: Which events are independent? Determine whether the events are independent or dependent.…

A: Dependent events : The events which influence the probability of other events  Independent events :…

Q: a. Construct operating characteristic curves for acceptance numbers of 2, 3, and 4 (to 4 decimals).…

A: The acceptance sampling procedure uses 20 randomly selected crystals that is n=20…

Q: Verify that p(x) = 9x¬10 is a probability density function on [1, ∞) and calculate its mean value.…

A:

Q: The number of orders received daily by an online vendor of used CDs is normally distributed with…

A: Given that.   X~N( μ , ?^2 )   μ=210     , ?=16   Z-score =( x - μ )/?

Q: Kumu is an ideal space for newbie live streamers who want to keep everything under control. Madam…

A:

Q: Current Year Previous Year Occupied Rooms 1,505 1,411 Total Rooms 1,750 1,700

A: Solution:- from given information x1= 1505     ,n1=1750 x2= 1411     ,n2=1700 null hypothesis…

Q: Let X denote the distance (m) that an animal moves from its birth site to the first territorial…

A:

Q: 1. When analyzing the accuracy of a machine classifier for cancer tissues, 16 of the 500 random…

A: Given that  X=16 , n=500

Q: uppose you are playing a game where you bet $5 and have a 48% chance of winning. The bet is 1:1.…

A: Given that  Suppose you are playing a game where you bet $5  Chance of winning = 48%  P(win) = 0.48…

Q: In choosing a positive integer from 100 to 999, what is the possibility of choosing a positive…

A:

Q: 4 5 6

A: The mean of the first data set is 9.2 The standard deviation is 2.1119

Q: A single card is drawn from a deck of 52 cards. What is the probability that the card is a red given…

A: Given : A single  card is drawn from a deck of 52 cards we have to find the following probabilities.

Q: 5. Identify a type: ordinal, nominal, discrete or continuous? c. Age On = 1, Off= 0 а. b. political…

A: Given some variables, we have to identify the type of variables as nominal, ordinal, discrete or…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Givenmean(μ)=0standard deviation(σ)=1

Q: onstruct the confidence interval for the population mean p. c= 0.90, x=7.1, o = 0.5, and n= 45

A: Given data,n=45x=7.1σ=0.5c=0.90Construct a 90% CI?

Q: Consider testing HO: µ=20 against Ha: u<20 where u is the mean number of latex gloves used per week…

A: In hypothesis testing, there are two hypotheses. These are null and alternative hypothesis. Using…

Q: 7. The marital status distribution of the Selangor's female population, ages 15 and older, is as…

A: The categorical variable is marital status, it has 4 types. We have to test whether age group of…

Q: What is the probability that the card is a 4 given that it is a Number Card? What is the probability…

A: In a deck of 52 Cards,            There are 36 Number Cards &amp; from which four are '4' Number…

Q: A coin purse has 3 OLD one-peso coins and 7 NEW one-peso coins. Suppose you randomly pick a coin and…

A: Let A1, A2, ... , An be n mutually exclusive and exhaustive events with P(Ai) &gt; 0 for all i = 1,…