Why should the sum of the probabilities in a probability distribution is always equal to 1? What is the shape of most probability distributions? Why do you think so?

Q: 1. Let X1,..., X, be an iid sample from Bernoulli(p). (a) Find the method of moment estimator of p. ...

A:

Q: P(−z0 < z < z0)= 0.8749 (Give the positive value of z0)

A:

Q: What is the probability that there are exactly 5 sightings within 5 months?   b. What is the mean ti...

A: here use poisson and exponential distribution The number of stork sightings on a route in South Caro...

Q: In a Scrabble tournament, the scores were normally distributed and the mean score was 420.2 points w...

A:

Q: Companies use employee training for various reasons, including employee loyalty, certification, qual...

A: * ANSWER :-  As per guidelines I answered 3 sub parts only.  Please repost remaining parts seperatel...

Q: Let X and Y are two independent random variables with probabilities P(X) = {0.25,0.45,0.3} and P(Y) ...

A:

Q: АСTIVITY B. For each, identify the parameter and statistic used in A. Distinguish the following as P...

A: We need to use the concept of Parameter and Statistic to answer given questions.

Q: A food stand can sell either fruit juice or hot coffee on any given day. If the stand sells fruit ju...

A: Given: Hot Profit Cold Profit Fruit Juice 20,000 Fruit Juice 8,000 Hot coffee 15,000 Hot coff...

Q: There are 5 pocket holes at the periphery of a round horizontal platform. In how many ways can 5 bal...

A:

Q: A deck of Uno cards has 4 colors (suits): Red, Yellow, Green, Blue Each color has cards numbered 1 t...

A: Attached file 

Q: An airline normally serve a meal on a long flight. If there are two meal options, what is the likeli...

A: Let n be the sample size = 6 Let p be the probability of selecting meal options = 12≈0.5 Let X denot...

Q: At Bob's Auto Plaza there are currently 9 new cars, 7 used cars, 8 new trucks, and 5 used trucks. Bo...

A: at bob's auto plaza there are currently 9 new cars, 7 used cars, 8 new trucks, and 5 used trucks.tot...

Q: If smoke is present, determine the probability that the smoke will be detected by the system. c) if...

A:

Q: Consider the chance experiment in which the type of transmission—automatic (A) or manual (M)—is reco...

A:

Q: provide handwritten answer for part 4 only

A: Contingency table used in the case of categorical variable. That helps to understand the relationshi...

Q: (a) Find the probability that the number picked is between 2 and 8. (b) Find the probability that th...

A: * SOLUTION :-   

Q: The random variables W1, W2,... are independent with common distribution k 1 2 3 4 Pr( W = k) 0.1 0....

A:

Q: Standardized tests: In a particular year, the mean score on the ACT test was 27.8 and the standard d...

A:

Q: The manager of the Oak Hills Swimming Club is planning the club's swimming team program. The first t...

A:

Q: 5. Brandon, a quality control engineer claims that the life length of a particular light bulb for an...

A:

Q: How many mobile phone numbers can be formed if the network code begin with 0 and 9 and the seven-dig...

A: here use concept of combination 

Q: uppose Ari loses 40% of all thumb wars (a) What is the probability that Ari loses two thumb wars in ...

A: The probability that Ari losses thumb wars is 0.40.

Q: According to Statistics Philippines life tables, a 90-year-old Filipino male has a 0.80 chance of li...

A:

Q: This table shows how many sophomores and juniors attended two school events. Jazz band Volleyball ga...

A: According to the given information, we have Total number of persons = 137   Jazz band concert Vol...

Q: Question 1. A researcher wants to study the effect of a price change on the sales of various brands ...

A:

Q: Apgar Score 0 1 2 3 4 5 6 7 8 9 10 Number of Babies 0 1 0 1 1 5 22 50 33 17 2 Probability           ...

A: Given information: Apgar Score 0 1 2 3 4 5 6 7 8 9 10 Number of Babies 0 1 0 1 1 5 22 50 33 17 ...

Q: Question 9 Suppose the commulative distribution function of the random variable X is given by 0. if ...

A:

Q: (a) What is p(2), that is P(Y = 2)? (Round your answer to four decimal places.) p(2) = | (b) What is...

A: NOTE-AS PER POLICY I HAVE CALCULATED  FIRST 3 SUBPARTS here given,battery voltage may be accepted or...

Q: How many ways can a committee of five be selected from an organization with 40 members? A 805,086 65...

A:

Q: Three cards are drawn in succession, without replacement, from an ordinary deck of cards. Find the p...

A: Given: A be the event that the first card is a black jack card. B be the event that the second card ...

Q: QUESTION 10 A survey among freshmen at a certain university revealed that the number of hours spent ...

A:

Q: You and your 4 other friends play 5 ranked games in mobile legends every day for the pas few months....

A:

Q: 2. About 13% of the population is left-handed. Assume that two persons are independently selected. W...

A: Given that  n=2 , p=13%=0.13 , q=1-p=1-0.13=0.87 X~Binomial(n=2,p=0.13) X=Number of left handed  p=P...

Q: Four friends shared 3 order of chicken wings. Alex ate 5/8 of an order  chase ate 7/8 of an order  ...

A:

Q: Solve for P(X=2, Y=2).

A: * SOLUTION :-  Based on the above information the calculation is provided as follows     

Q: How many ways are there to select three unordered elements from a set with five elements when repeti...

A: Given: Number of elements = 5 Number of unordered elements = 3 If repetition is allowed, permutati...

Q: Carl’s basketball shooting records indicate that for any frame, the probability that he will score i...

A: Given that the probability that he will score in a two-point shoot is 30%, a three-point shoot is 45...

Q: The probability that a patient recovers from a stomach disease is 0.7. Suppose 20 people are known t...

A:

Q: Activity 2. Consider sampling the 300 students, in a different way, to obtain a sample of 150 stu-de...

A: Given that we consider sampling the 300 students, in a different way, to obtain a sample of 150 stud...

Q: CNNBC recently reported that the mean annual cost of auto insurance is 1000 dollars. Assume the stan...

A:

Q: Need help!!   How many ways can four one-hundred-pesos bills and five fifty-peso bills be distribu...

A: Given,no.of one-hundred-pesos bills=4no.of fifty-peso bills=5Total no.of bills=9

Q: estion 25 Suppose that you are searching for a room for rental at Mankweng until you find a place th...

A: Given: P( finding the right place)= 0.4  

Q: Experiment A hat contains slips of paper with the names of boys and girls in a class. A name is rand...

A:    

Q: A study shows in a certain school that the average number of hours a student answers his/her module ...

A:

Q: A Toyota Fortuner that has been filled with gasoline has a 0.25 chance of needing an oil change; a 0...

A: Obtain the probability that the oil has to be changed if a new oil filter is needed. The probability...

Q: A coin is flipped until 3 heads in succession occur. Is this a discrete sample space? Explain. List ...

A: Given that, A coin is flipped until 3 heads in succession occur.

Q: tom has 0.5 chance of winning the booker prize,whereas john has a 0.4 chance of winning the booker p...

A:

Q: Central Limit Theorem for Sums Suppose random samples of n = 42 are collected from an unknown distri...

A:

Q: What is the probability of selecting at least one yellow ball? What is the probability of selecting ...

A:

Q: A college professor never finishes his lecture before the end of the hour and always finishes his le...

A: For the given problem ( b)p( within 1 min ) =? ( c ) p( between 30 and 60 sec ) =? ( d ) p( atleast ...