P(4 science and 5 math) = 0 0/0 믐 X Ś

Q: Find the standard deviation for the given sample data. Round your answer to one more decimal place…

A: The data (X) for n=12 are : 15, -5,14, 8, -1,10, -6, 1, 0, 4, -3 ,9 , =3.8333 = s= =7.247

Q: A recent survey reported that 47​% of​ 18- to​ 29-year-olds in a certain country own tablets. What…

A: Probability that 18-to-29 year olds in a certain country own tablets(p)=0.47sample size(n)=6Let "x"…

Q: Number of states 20- 15- 10- 5- 0- 60 63 O a. 87% to 90%. The rightmost bar in the histogram covers…

A: Here the given histogram is:-We have to determine the percents of on-time high school graduates…

Q: The National Hockey League (NHL) has about 70% of its players born outside the United States, and of…

A:

Q: Using Excel, run descriptive analysis for the first 12 months, the next 12 months, etc., on the…

A: MonthsCostumers1103211331234125514961447151816591781019211202122001311014114151161613417132

Q: Question 1 Segolame is a final year student and has embarked on collecting data for his research…

A: OccupationMaleFemaleTotalAdministrators271441Proffesionals312051Technicians64156220Agricultural…

Q: b) Find the  55th  percentile of the number of apps. Round the answer to two decimal places. The…

A: The mean is 89 and the standard deviation is 30.

Q: P(34<X<60) Click the icon to view a table of areas under the normal curve. Which of the following…

A: Mean=50, standard Deviations=7

Q: (a) Draw a normal curve with the parameters labeled. Choose the correct graph below. O A. A 4000…

A: It is given that Mean = 3500Standard deviation = 500

Q: When would you want to use a goodness-of-fit test? What are the requirements for this test?

A: A goodness-of-fit is a statistical test that tries to determine whether a set of observed values…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: we haven=90

Q: A gas station recently sent out "scratch and save" coupons through the mail. The coupons offer…

A: The probability distribution of the "scratch and save" saving coupons is given as:Discount…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: From the given Information ,Sample size , n = 1453number of criminals captured , X = 392We have to…

Q: 7. Suppose that three random variables X₁, X2, and X3 have a mixed joint distribution with…

A:

Q: Find the area under the shaded region. The graph depicts the standard normal distribution with mean…

A: Z has follows standard normal distribution with mean zero and standard deviation one.

Q: The response to a question has three alternatives: A, B, and C. A sample of 120 responses provides…

A: Total sample is 120No. of responses provides A=60No. of responses provides B=24No. of responses…

Q: Let x be a Poisson random variable with μ = 0.9. Find the probabilities for x using Table 2. (Round…

A: The whole table of cummulative poisson distribution is givenWhere column represent and row…

Q: A sample of n = 8 scores has a mean of M = 16. For this sample, ΣX = 128. Is this true or false?

A: A sample of n = 8 scores has a mean of M = 16. For this sample, ΣX = 128.

Q: If P(A) = 0.25, P(B) = 0.4, and P(AnB)=1, find the pribability that A or B will ovcur.

A: We have given thatP(A) = 0.25P( B) = 0.4P(AB) = 0.15

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

A: Z has follows standard normal distribution with mean 0 and standard deviation 1.

Q: in a poll 41% of the united states was found to be independednt in political party affiliation. if…

A: the number of people surveyed n=10the proportion of independents in the population p=0.41

Q: Find the indicated probability. Statistics show that about 42% of Americans voted in the previous…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Let x be a Poisson random variable with μ = 6.5. Find the probabilities for x using the Poisson…

A:

Q: Assume that a procedure yields a binomial distribution with a trial repeated n=20 times. Use either…

A: Note: Since you have asked multiple question, we will solve the first question for you. If you want…

Q: You pay $11 to play a game where you draw a numbered ball from a bucket containing 12 identical…

A: Here the given information is ,You pay $11 to play a game where you draw a numbered ball from a…

Q: 8. Given the following statistics: Mean=71; standard deviation = 8.5; and a person's score on a test…

A: 8) Given,Mean, μ = 71Standard deviation, σ = 8.5A person's score on a test is, X = 88Using…

Q: binomial distribution.     a. For n=3 and π=0.11​, what is P(X=0​)? b. For n=11 and π=0.40​, what is…

A: The probability mass function of binomial distribution is.P(X=x)=nCxpxqn-x  , x=0,1...nπ=pNote:…

Q: Listed below are time intervals​ (min) between eruptions of a geyser. Assume that the​ "recent"…

A: RecentPast799090878993789457641018461848792718888918291829157827410362Significance level or Do not…

Q: The school's newspaper reported that the proportion of students majoring in business is at least…

A: It is needed to define the correct set of hypotheses.

Q: A regression analysis relating store size in square feet and annual sales in millions of dollars has…

A: It is given that the partially filled output in ANOVA table. Here, first we need to complete the…

Q: Assume the random variable X is normally distributed with mean μ = 50 and standard deviation o=7.…

A:

Q: Which of the following is a source of O Using 95% confidence. O Some subjects do not tell the truth.…

A: There are four statements are given. We have to indetify the statements that ocuurs due to the…

Q: 5. When a roulette wheel is spun a ball ends up on one of the 40 numbers located on it; 19 of the…

A: Total number = 40Black number = 19Red number = 19Green number = 2

Q: Use the sample mean(78.5)and sample standard deviation (12.3671)in your calculations below. Use…

A: Given that:

Q: It is known that a certain basketball player will successfully make a free throw 90.71% of the time.…

A: From the given information,P = 90.71%= 0.9071So, q = 1- P = 1-0.9071 = 0.0929n = 11we have to find…

Q: exper ospital (dependen Hable) are related to many factors. One of these factors is the number of…

A: The dependent variable is total expensesThe independent variable is number of admissions The value…

Q: The following table shows whether students dominant hand was their right hand or not and which of…

A: It is given that the table shows whether students dominant hand was their right hand or not and…

Q: A survey of 2311 adults in a certain large country aged 18 and older conducted by a reputable…

A: It is required to obtain the 90% confidence interval for the population proportion.

Q: What is the probability a​ male's growth plates fuse after age  21​?

A: The ability to determine the age of some individuals can be difficult if there are not quality…

Q: Steel rods are manufactured with a mean length of 22 centimeter (cm). Because of variability in the…

A: The mean is 22 and the standard deviation is 0.06.

Q: According to a website, the mean number of apps on a smartphone in the United States is  90. Assume…

A: From the provided information,

Q: The following hypotheses are given. He: ≤0.70 H₂>0.70 A sample of 100 observations revealed that…

A: Given,Sample size = n = 100 Significance level = 0.05Sample proportion = P = = 0.75  Using Formula…

Q: Assume that the two samples are independent simple random samples selected from normally distributed…

A: There are two independent samples which are Women and Men.We have to test whether women and men have…

Q: K Compute P(X) using the binomial probability formula. Then determine whether the normal…

A: n=52P=0.7X=44

Q: For the following discrete probability distribution, x represents the number of cats a cat-owning…

A: Given the probability distribution table of x is,xP(x)10.3520.4430.194+0.02

Q: (Round to four decimal places as needed.) (d) The area to the left of Z=-1.22 is (Round to four…

A: The area under the standard normal curve that lies to the left of z = -1.22

Q: Use the given data set to complete parts (a) through (c) below. (Use a=0.05.) 10 7.45 6.78 Click…

A: XY107.4586.781312.7397.11117.81148.8366.0745.39128.1476.4355.73

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given  thatTotal sample size(n)=871number of people caught =243

Q: The number of visits to a website is known to have a Poisson distribution with a mean of 10 visits…

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

Q: A simple random sample of size n = 56 is obtained from a population that s skewed left with μ=81 and…

A: Sample size n= 56μ = 81 σ = 8