If P(A) = 0.6 and P(B) = 0.5, then A and B can be disjoint events. true or false?

Q: Shop Location Annual Return (Thousands of Dollars) Number of Households (Thousands) 1 Mall  185.69…

A:

Q: institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=1087 and…

A: Given that  X = 562 , n = 1087 Confidence level 90%

Q: The Random Variable X counts the number of students in a 23 person class who passed an exam. If the…

A: The Random Variable X counts the number of students in a 23 person class who passed an exam.  If the…

Q: 2. Let Z₁, Z₂ be a random sample from a standard normal distribution, and X₁, X₂ a random sample…

A:

Q: In a study of color perception, 132 men are tested, and 48 are found to have red/green color…

A: Here, n=132 and x=48. 1. np^1-p^=132×48132×1-48132                =30.5454

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 54% of the…

A: Given that : Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast…

Q: Suppose the president claims that at least 80 percent of the company's 5,000 customers are…

A: We have given thatn = 100x = 73p̂ = x/n = 73/100 = 0.73p = 0.80α = 0.05

Q: Exit polls, or interviews with voters right after they cast their ballots, are conducted by a…

A: P=P(Final selection winner)=0.60 n=25

Q: Select one: O a. Converse O b. Contrapositive Oc. Inverse O d. Biconditional

A: It is given that p= Roses are red and  q= Violets are blue  It can be seen that both statements p…

Q: If you roll a 64 sided die 100 times; what is the percentage of chance that you will see all the…

A: Given: Number of trials = n = 100 Possible values when a die is rolled: 1 to 64

Q: 4.A prior study(by Pew Research 2021)found that 35 out of 50 randomly selected US adults between…

A: a. From the given information, X = 35, n = 50. The value of p is, p=xn  =3550  =0.7 The value of p…

Q: hanks to an initiative to recruit top students, an administrator at a college claims that this…

A: From the provided information, Sample size (n) = 10 Sample mean (x̄) = 119 Sample standard deviation…

Q: Conduct the hypothesis test and provide the test statistic and the critical value, and state the…

A: Given: The four categories are equally likely to occur this means that the probability of each…

Q: What is the probability that when using an unfair coin, with a head = 2/3 and a tail 1/3: a. you…

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

Q: The amount of syrup that people put on their pancakes is normally distributed with mean 62 mL and…

A: Formula : Z =(X - μ)/σ

Q: A magazine reported that at the top 50 business schools in a​ region, students studied an average of…

A: Given dataA magazine reported that at the top 50 business schools in a regionstudents studied an…

Q: om variable with the following distribution and let Y = 2X2 - 3. a) what is the distribution of Y?…

A: x -1 0 1 2 f(x)  0.1 0.2 0.4 0.3 If discrete random variables x and y are defined on the same…

Q: How did you come to the conclusion for the relative frequencies numbers being 0.5, 0.10, etc?

A:

Q: Find the confidence interval for an Independent-Samples t-test (Ch.10), given the following info:…

A: Formula : CI=(x̄1 - x̄2) ± ME

Q: Compute the sample proportion of U.S. adults that avoid drinking regular soda or pop. Round your…

A: here given , A 2018 Gallup survey asked respondents to consider several foods and beverages and to…

Q: find the probability of P(E)c if P(E)=0.17

A: Given P(E)=0.17  Find P(Ec)=?

Q: false positive results; among 151 negative results, there are 5 false negative results. If one of…

A: Given Total marijuana is 296

Q: 2. Random variables X and Y have joint PDF fx,x(x, y) = ce¯(57)-(1³) What is the constant c? Are X…

A:

Q: Medical researchers have developed a new artificial heart constructed primarily of titanium and…

A: Given Information: Sample size n=50 Sample mean x¯=4.05 Population standard deviation σ=0.2…

Q: A custodian wishes to compare two competing floor waxes to decide which one is best. He believes…

A: Formula : Test statistic :

Q: A metropolitan transportation authority has set a bus mechanical reliability goal of 3,800 bus…

A: Part 1.   Suppose μ is the population mean bus miles between mechanical road calls.

Q: what percentage of data is within 1.5 standard deviations of the mean? What percentage of data is…

A: For the Standard Normal distribution Mean = 0 Variance  = 1 , so standard deviation = 1 Use excel…

Q: Refer to the rabbit ear lengths data set attached to this question. A fellow researcher believes…

A: The following is the sample data of ear length of 10 mountain cottontail rabbits. 5.4, 5.5 , 6.0,…

Q: 3. In genetic investigations, one frequently samples from a binomial distribution. Except that…

A: Binomial distribution   The Binomial distribution may be a statistical distribution of the possible…

Q: A simple random sample of size n=81 is obtained from a population that is skewed right with μ = 83…

A: Disclaimer: Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: size n = 2) is the number of possibilities on the first roll (8) all of these possible samples, the…

A: The true mean of the number 1,2,3,4,5,6,7,8 is calculated as  μ=1+2+3+4+5+6+7+88  =368=4.5 x x2…

Q: Your class results should suggest that even though sample values vary depending on which sample you…

A: It is given that p=0.45 and n=75.

Q: An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for…

A: According to the given information in this question We need to find range sample variance and sample…

Q: A researcher is studying two types of medication that both treat hives. 18 out of the random sample…

A: From the provided information,

Q: It has been observed that Crenshaw’s students don’t seem to do in well in math. To investigate that,…

A: From the given information, The Crenshaw’s students are, Student 4th Grade Teacher 4th Grade…

Q: Conduct the hypothesis test and provide the test statistic and the critical value, and state the…

A: Given: The four categories are equally likely to occur this means that the probability of each…

Q: What is the median number here?     4.88, 4.62, 4.38, 5.02, 6.30, 5.33

A: Given data 4.88, 4.62, 4.38, 5.02, 6.30, 5.33

Q: Shen took 9 test this year. His mean score was 69 points. How many total points did he earn for the…

A: From the provided information, Shen took 9 test this year that is n = 9 Mean score (x̄) = 69 points

Q: Find the sample variance and standard deviation. 8, 54, 10, 49, 37, 23, 32, 30, 32, 27 Choose the…

A: According to the given information in this question There are two different questions according to…

Q: Last week, your manager asked you to analyze staffing needs for the foreclosure department. She was…

A: The question is about hypo. testing Given : Popl. mean no. of documents processed ( μ ) = 15.11 per…

Q: Kelana Convoy company is announcing of giving a promotion for 60 customers for a trip to London and…

A: Given that: About 10% of the person who had made a reservation and had a ticket were absentfor that…

Q: the answer choices for the last question are  0 1/2 1 1/4

A: The possible outcomes for flipping a coin are {head, tail}.

Q: In Arkansas, the probability that someone is unemployed is 0.037. We surveyed 3000 people in that…

A: Given that, In Arkansas, the probability that someone is unemployed is 0.037.  Sample size is 3000.…

Q: A newspaper reported on the results of an opinion poll in which adults were asked what one thing…

A: According to the given information in this question We need to find 95% confidence interval

Q: A cellphone provider has the business objective of wanting to determine the proportion of…

A:

Q: The population mean will always be the same as the mean of all possible X that can be computed from…

A: Given : The population mean will always be the same as the mean of all possible X that can be…

Q: For the distribution N(9,3) match the probabilities below: P(X 8) P(X < 11) [Choose ] [Choose ]…

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

Q: In N(5, 4): For Z-scores: type in exact answers as decimals. For probabilities: round to 4 decimal…

A: Solution

Q: V. Is your conclusion in part iii. for the Apparatus Finals consistent with your conclusion for the…

A: As per the requirement solving IV and V.

Q: The demand for good X is estimated to be Qxd = 10,000 - 4Px + 5Py + 2M + Ax, where Px is the price…

A: Qx= 10,000-4px+5Py +2M +Ax Notation are defined in question,  We have to tell goods X and Y are.. We…