Probability

Q: Skyler buys a bag of cookies that contains 8 chocolate chip cookies, 5 peanut butter cookies, 8…

A: Given that. Total cookies=8+5+8+9=30 Chocolate chip cookies=8 Peanut butter cookies=5 Sugar…

Q: 1. Three identical slips of paper with the numbers 1, 2 and 3 (one number on each slip) are placed…

A:

Q: Example 6. In a survey of 500 students in a college 180 were listed as drinking Tea, 275 ás drinking…

A:

Q: a) Find the probability that the student is taking at least one course in electronics, engine…

A:

Q: Illustration 55. Fit a Poisson distribution to the following frequency distribution and estimate the…

A:

Q: The random variable, X, representing the number of cherries in a cherry cake, has the following…

A: The random variable x denotes the number of cherries in a cherry cake.

Q: In a company survey of 1000 skiers and bikers it is found that 80% like skiing and 60% like biking.…

A:

Q: Example 3 Calculate the mean of the given frequency distribution. Class intervals: 10-20 20-30 30-40…

A:

Q: 1.) Determine the mean, median, mode and midrange of the data. R-

A: here given , total given data 14  n =14

Q: Show that if E1,... , En are events such that P(E;) = 1 for i = 1, ...,n, then Ek) = 1. k=1

A: We have events E1, E2,...., En such that PEi = 1. We have to that the probability of the event…

Q: 1. A normal population has a mean of 73 and standard deviation of 14. You select random samples of…

A: Given that  X~Normal(μ= 73 , σ= 14 ) μ= 73 , σ= 14 , n=9

Q: Identify the parameter of interest and the type of error committed in the given example. 2. A…

A: The parameter of interest here in this example is the two different types of medication used in this…

Q: Consider a market for used bicycles, with high and low quality. Sellers value high quality at $260…

A:

Q: q- A random variable is normally distributed with a mean of μ = 50 and a standard deviation of σ =…

A: Given that.   X~N( μ , ?^2 )   μ=50   , ?=5   Z-score =( x - μ )/?

Q: Draw and Shade the normal curve, find the percentage of that shaded part and find the number of…

A: GivenMean(x)=480sample standard deviation(s)=50

Q: Our department seminar room is lit by 7 light bulbs, controlled by a single switch. A minimum of 3…

A:

Q: A population of values has an unknown distribution with µ = 124.2 and o Fandom sample of size n =…

A: Given data,μ=124.2σ=58.3n=106

Q: The accompanying table shows the âges (in years) of 11 Chliun Click here to view the data table.…

A: As it is found that, the correlation coefficient is r= 0.976 Sample size is n= 11 Then test…

Q: The phone company A Fee and Fee has a monthly cellular plan where a customer pays a flat monthly fee…

A: A) Find an equation in the form y=mx+b B) Use your equation to find the total monthly cost if 731…

Q: Here is a bivariate data set. y 54.7 71.7 56 32.8 82.5 79.6 49.7 25.4 73.2 88.1 71.4 78.7 81.1 85.8…

A:

Q: 4. Calculate Karl Pearson's co-efficient of correlation for the following data. Price (in Rs) (x):…

A:

Q: There are two random variables X and Y, and their correlation coefficient pX,Y = 0.7. Now, we have…

A:

Q: Describe the key similarity between a binomial and a geometric distribution. O a) both distributions…

A: Since we know that In binomial distribution the probability is same for every trials and each trail…

Q: There are hundreds of apples on the trees, so you randomly choose just 59 apples and get a mean…

A: Given,sample size(n)=59sample mean(x¯)=81.47standard deviation(s)=4.08degrees of…

Q: Television viewing reached a new high when the Nielson Company reported a mean daily viewing time of…

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

Q: A Markov chain has the transition probability matrix [0.3 0.2 0.5 0.5 0.1 0.4 0.5 0.2 0.3 What is Pr…

A: A Markov process whose state space is discrete then it is called as Markov chain. Suppose,…

Q: Deeall th at the gamma qun etion is dycned as amm a S. yas r>o. you c an use nithout prooy that'…

A: Solution

Q: An apple juice producer buys all his apples from a conglomerate of apple growers in one northwest…

A: Given data,Mean μ=2.06Sd   σ=0.16P(X<1.90)=?

Q: Standard Ultimate Survival Model says that the force of mortality equals Ho = A+ Bc® with A =…

A:

Q: Which formula can be used to calculate the expectation for a geometric distribution? a) 1 O b) np O…

A:

Q: two balls are drawn at random from an urn containing six white and nine red balls. Recall, the…

A: 15(balls)=6(white)+9(red)

Q: In the class of Mr. Matic, the probability that a student likes both mathematics and science is…

A: Probability is the likelihood of all the observation occurred in the sample. Conditional event…

Q: You are given the following data relating to aptitude scores and productivity Example 1 index..…

A:

Q: 7.) Assume the annual salaries of police officers are normally distributed with a mean of $50,000…

A:

Q: Explain the importance of direct and indirect standardised death rates.

A:

Q: 4. Calculate Karl Pearson's co-efficient of correlation for the following data. Price (in Rs) (x):…

A:

Q: Suppose that the life distribution of an item has the hazard rate function 1(t) = t³,t > 0. What is…

A:

Q: Example 6. In a survey of 500 students in a college 180 were listed as drinking Tea, 275 as drinking…

A: Let T=students in a college were drinking TeaC=students in a college were drinking…

Q: (vii) at least one of the car (viii) none of the car.

A:

Q: For a team with 1318 turnovers in a season, find the expected number of wins in a season.

A: It is given that Regression equation of y on x is y = 102 - 0.05x

Q: 1. A company is manufacturing blue jeans at a cost of $9.99 per pair. They plan to put a price tag…

A: The question has wrong number of zeroes in total pairs of jeans and in gross income of 15 million…

Q: Formulate the appropriate null and alternative hypotheses in (a) words and (b) symbols in the…

A: Formulation of hypotheses is the fundamental step of hypothesis testing.

Q: Fisher's Index number is an – ideal index number justify.

A:

Q: A Grade of B: To get a grade of B, a student must have a mean average of 80 or greater. Jim Condor…

A: Given that

Q: Example 2 Find the median height from the following heights of 8 students. Height (cms): 59, 60, 72,…

A:

Q: The random variable x is known to be uniformly distributed between 0.5 and 2.5. Compute P(1.0 ≤ x ≤…

A: We have given that the random variable X follows Uniform distribution between 0.5 and 2.5. The pdf…

Q: Describe the event U u E' in words. This is the event that an author is either unsuccessful or not…

A: It is given that Total = 100 Number of unsuccessful authors = 66 Number of not established authors =…

Q: 5. Consider three events: E1, E2, and F. Assume that P(F) > 0, and that P(E, N E2|F) =…

A: Introduction:  Conditional Probability: Let there are two events , event A and event B. Then the…

Q: 6. Calculate co-efficient of correlation using Karl Pearson's method. Advertisement ('000 Rs) (x):…

A:

Q: 4. The standard deviation of X, denoted SD(X), is given by SD(X) = Var(X). Find SD(aX + b) if X has…

A: Given that  Var(X)=σ2 SD=√Var(X)=σ