If P (B) = 0.7, find P (B²). P(B) = X Ś

Q: (9) You are dealt a hand of three cards, one at a time. Find the probability that you get no black…

A: total number of cards in a standard deck = 52you dealt a hand of three cards, one at a time.

Q: 5 Assume that 30.8% of people have sleepwalked. Assume that in a random sample of 1459 adults, 487…

A:

Q: The average American man consumes 10 grams of sodium each day. Suppose that the sodium consumption…

A: From the provided information, Mean (µ) = 10 Standard deviation (σ) = 0.8

Q: c) Does the addition of X significantly contribute to prediction of y after accounting for the…

A: Type I SS: In regression analysis, the Type I sum of squares, referred to as sequential sum of…

Q: What is the minimum sample size needed assuming that no prior information is​ available? n= ___…

A: It is given that  Margin of error, E = 5% = 0.05 Confidence interval = 95%

Q: Assume the number of users of a bank machine in a 5 minute interval is Poisson distributed with a…

A: Let us denote X as the number of users of a bank machine in a 5 minute interval follows Poisson…

Q: 8. An allegedly psychic animal's feeding behaviour is used to predict outcomes of eight soccer…

A:

Q: You are dealt a hand of three cards, one at a time. Find the probability that your thirc card is…

A: Note that there are 52 cards in total, out of which 4 are ace. Here, three cards are dealt, one at a…

Q: Suppose that a 12D die is rolled 13 times. What is the probability that  at least 3 ones appear?…

A: Suppose a random variable X, defines that the number of times one appears.

Q: is the null hypothesis accepted or rejected

A: Solution: Given information: n= 12 Sample size  μ=150 Population mean x= 125 Sample mean s= 43…

Q: Assume that you want to construct a 95% confidence interval estimate of a population mean. Find an…

A: The margin of error is 8.3 and the standard deviation is 62.1.

Q: The probability distribution model of winning a gambling game is given as: X P(X) $40 1 6 $0 5 36…

A: Expected value= sum( probability* X)   Expected profit to owner = expected loss to player For one…

Q: The length of gestation for hippopotami is approximately Normal, with a mean of 269 days and a…

A: Given Mean=269 Standard deviations=7

Q: ← If np 25 and nq 25, estimate P(more than 4) with n=11 and p=0.4 by using the normal distribution…

A:

Q: 5.30 Music file size on a tablet PC. A tablet PC contains 3217 music files. The distribution of file…

A:

Q: According to insurance records, a car with a certain protection system will be recovered 94% of the…

A: given data n= 300p = 0.94here np(1-p) = 300(0.94)(1-0.94) = 16.92>10∴we can use normal…

Q: Widows A recent study indicated that 34% of the 130 women over age 55 in the study were widows.…

A: From the provided information, Proportion estimate (p̂) = 0.34 Confidence level = 99% Margin of…

Q: a. Determine three-sigma control limits using the above data. (Round your intermediate calculations…

A: We will calculate the 3 sigma control chart to conclude that the process is in under control or not…

Q: Can the standard deviation of a data set be zero

A: Standard deviation can not be negative.

Q: The current mean age of the retirement in the US is age 65 years old, with a standard deviation of 7…

A: Given Mean=65 Standard deviations=7

Q: what do we call our cutoff for "too unlikly" expresed as a probablity  1 threshold probablity 2…

A: We want to tell you which option is the correct choice.

Q: University Costs. After deducting grants based on need, the average cost to attend the University of…

A: 54. The mean is $27175 and standard deviation is $7400.

Q: In certain country, 38% of the population has type A blood. Suppose 30 people from that country are…

A: We have given the following information  In certain country, 38% of the population has type A blood.…

Q: products produced with this process. 58. Australians and Smoking. Reuters reports that 15 percent of…

A: The question is about sampling distributions Given : % of people smoke country " A "  ( p ) = 0.15…

Q: a normal population has a mean of $92 and standard deviation of $11. You select random samples of…

A: Given information: Mean (µ)=92Standard deviation(σ)=11Sample size (n)=50 Find: PX¯-µ≤1.50 Formula: Z…

Q: Based on a survey, assume that 43% of consumers are comfortable having drones deliver their…

A: It is given that the 43% of consumers are comfortable having drones deliver their purchases.

Q: Test the claim that the mean GPA of night students is significantly different than 3 at the 0.05…

A: Givenclaim is that the mean GPA of night students is significantly different than…

Q: A manufacturer knows that their items have a lengths that are approximately normally distributed,…

A: given data  normal distribution μ = 19.4σ = 4.8n = 32P(x¯>17.9) = ?

Q: The average number of moves a person makes in his or her lifetime is 12 and the standard deviation…

A: The mean is 12 and standard deviation is 3.9.

Q: The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is…

A: The mean is 2196 and the standard deviation is 390.

Q: Consider the following dataset. Fit a multiple linear regression to these data. 57 54 X1 X2 Y 54 56…

A: Given data: X1 X2 Y 54 56 96 61 80 50 65 70 50 100 50 112 100 65 96 100 80 80 50 25…

Q: (d) What is the p-value from the simulated distribution of sample statistics? 0.0010 240

A: d) From the given applet output, Count=1/1000=0.0010. That is, the p value from applet output is…

Q: Quarterly sales of PnP (in hundred million Rands) from 2000 to 2004 are given in the table below.…

A: As per our guidelines I can solve only first one question. Kindly post the remaining question again…

Q: One of the assertions made in the diamond industry is that the rating agencies have an impact on (or…

A: The object is to set up a test to test the validity of the stated claim that agencies have an impact…

Q: Write a description of the random variable describing this survey (2) Write a probability…

A: It is given that the surveyed 50 people to rate how much they like their job.     Note: According to…

Q: A study sought to understand binge drinking in teenagers. After surveying 100 high school students…

A:

Q: rect Satellite Television It is believed that 25% of U.S. homes have a direct satellite television…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use EXCEL…

Q: a) Construct a stem-and-leaf plot for the data

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

Q: The ages of job applicants for a security guard position are uniformly distributed to a radiour…

A:

Q: According to the Federal Communications Commission, 70% of all U.S. households are using video…

A: Given,n=15p=0.7q=1-0.7=0.3A random variable X~Binomial(n=15 , p=0.7)P(X=x)=Cx(0.7)x(0.3)15-x       ;…

Q: If a researcher wanted to know the probability than an individuals's systolic blood pressure would…

A: Givenresearcher wanted to know the probability than an individuals's systolic blood pressure would…

Q: What is the mean for the probability experiment that the first one shows up on 5throll, when rolling…

A:

Q: When a certain type of thumbtack is flipped, the probability of its landing tip up (U) is 0.63 and…

A: From given data we have : Probability of landing up is P(U)=0.63 Probability of landing down is…

Q: 14) A casino game has three possible winnings, $15, $10, and $5, each being twice as likely as the…

A: Consider the probabilities of winnings of  $15, $10, and $5 as p1, p2 and p3 respectively. It is…

Q: Required: Johnson Plastics Incorporated produces cases for CDs. The accounting manager has performed…

A: Given: y = $5000 t-value = 2.5 Standard error SE = $400 Formula Used: Confidence interval = y ±…

Q: Exercise 3G 1 The table shows the average times, in minutes, that 100 people waited for a train.…

A: For the mentioned table, We have to construct cumulative frequency table, cumulative frequency graph…

Q: Given that X is a continuous random variable that has a uniform probability distribution, and 0 < X…

A:

Q: How many players are below the average? How many players are above the average?

A: From the given information we find the solution.

Q: Find the equation of the least-squares regression line ŷ and the linear correlation coefficient r…

A: Correlation r=∑(xi-x¯)(yi-y¯)∑(xi-x¯)2∑(yi-y¯)2

Q: 3. Assume that 60% of cars driven into Dublin at rush hour have 1 occupant, 20% have two occupants,…

A: Solution - Given that, X denote the number of occupants in a randomly selected car in Dublin at rush…