Q3. A certain brand of LED lamps have an average life of 360 hrs with a population standard deviation of 30 hrs. (b) What is the probability that any lamp will have a life of 310 hrs?

Q: Determine the number of different "words" that can be made with the ten cards.

A: Here arrangement of given 10 letters that make different words  Here F repeat 3 times M repeat 2 tim...

Q: If three coins are tossed, how many possible ways are there of at least one coin showing tails? Your...

A:

Q: 2.4.10. Suppose events A and B are such that P(A n B) = 0.1 and P((A U B)^) = 0.3. If P(A) = 0.2, wh...

A: Given that, Suppose events A and B are such that P(A n B) = 0.1 and P( (A U B)c )  = 0.3. If P(A) = ...

Q: -Why is it important to sample not more than 10% of the population when the mple is drawn without re...

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per th...

Q: 1. Analyze and solve each problem. a. How many bracelets with no lock can be formed from 7 differen...

A: 7 different coloured beads can be arranged among themselves in a circularorder in (7−1)!=6! ways.In ...

Q: Joanne estimates that she has a 85% chance of passing Biology and a 95% chance of passing English. A...

A:

Q: A group of 62 students were surveyed, and it was found that each of the students surveyed liked at l...

A:

Q: Suppose that X, Y, and Z are jointly distributed random variables, that is, they are defined on the ...

A: Given E(X)=-8, E(Y)=9, E(Z)=2, V(X)=24,V(Y)=19, V(Z)=45   

Q: ACTIVITY 2 (Tossing of 3 Coins) Suppose three coins are tossed- Let Y be the random variable represe...

A: Three coins are tossed. The possible number of outcomes is 23 =8. Y denotes the number of tails. Y= ...

Q: 1. The two dice are rolled. Find the probability of the following events a) the sum of the dropped p...

A: Probability is the chance of occurrence of an event. 

Q: An urn contains 4 marbles. Each marble is either black or white. The number of black marbles could b...

A:

Q: The student council is hosting a drawing to raise money for scholarships. They are selling tickets f...

A:

Q: A die is tossed twice. Getting a number greater than 4' is considered a success. Find the mean and v...

A: Given that  A dice tossed twice  n=2 Sample space=S={1,2,3,4,5,6} Required outcomes=(5,6) p=2/6=1/3 ...

Q: Exercise 2.6 (Bayes' Theorem) In Exercise 2.4, what is the probability that a new design will be hig...

A: Here use tree diagram and Bayes rule

Q: If there are 25 uncensored observations at 70°C that are assumed to be observations on independent E...

A:

Q: 2. P(X = x) =55 x², if x € {1,2,3,4and 5} %3D 0,otherwise 3. P(X = x) = if x € {1,2,3,4,5,6} 0,other...

A: Given,  P(X=x)= x2/55  for x= 1,2,3,4,5 Then by substitution,  P(X=1)= 1/55 P(X=2)= 4/55 P(X=3)=9/55...

Q: Problem 3 You have invited 64 guests to a party. You need to make sandwiches for the guests. You bel...

A:

Q: 8. a) Using Excel's 'series fill' function make a column of data from -10 to 10 with each cell incre...

A: a)  The Series values from -10 to 10 has been calculated using  the Excel 'Series' function is as fo...

Q: Two different missiles are shot simultaneously at a practice target. If the probability of the first...

A: Ans#- Given two different missiles are shot simultaneously at a practice target.            Probabil...

Q: 5 Just prior to jury selection for O. J. Simpson's murder trial in 1995, a poll found that about 20%...

A: Given that  Let X denotes the number of jurors believing in Simpson's innocence  20% of the adult po...

Q: One-fourth of the female freshmen entering a Virginia College are out-of-state students. If the stud...

A: Binomial distribution is given by

Q: On average, the number of students that choose to study Arts related subjects at lowa University is ...

A:

Q: Situation 3: Professor Rojas wanted to find out if his students' vocabulary skills correlate signifi...

A: Given information: As per guidelines we will only answer the first three subparts, please repost oth...

Q: We have a deck of 6 cards numbered from 1 to 6. Some are grey and some are white, as shown below. 1 ...

A: Given that  Total card=6 Sample space=S=(1,2,3,4,5,6) Grey card=2 Grey card space=(2,4) White card=4...

Q: (d) The mean biomass per quadrat is not a very meaningful number. Estimate the total biomass (g) of ...

A: @solution::: Thank you for asking this question.

Q: How many permutation can be made from the letters of the word "columns"

A: There are two ways to represent the elements; Combination and Permutation. The combination is used w...

Q: MODULE 12: Calculating the Small-Sample Confidence Interval Estimate for Mean when o is unknown Indi...

A: According our policy we can answer only first question for remaining please repost the question. 

Q: What are your chances of winning a raffle in which 325 tickets have been sold, if you have one ticke...

A: you buy one ticket to participate in raffle in which total 325 tickets sold.

Q: A boiler has four identical relief valves. The probability that any particular valve will open on de...

A:

Q: An aircraft seam requires 24 rivets. The seam will have to be reworked if any of these rivets is def...

A:

Q: 79% of owned dogs in the United States are spayed or neutered. Round your answers to four decimal pl...

A: Here is given that p = 0.79 and n = 46 We will use binomial distribution.

Q: Two standard dice are rolled. What is the probability of rolling doubles (both the same number)?

A: Given that  Total number of outcomes=36 S={ (1,1) (1,2) (1,3) (1,4) (1,5) (1,6)  (2,1) (2,2) (2,3) (...

Q: A box contains 3 red balls, 2 green balls and 5 blue balls. A ball is drawn at random from the box. ...

A: We have given that, Total number of balls = 10 Red balls = 3 Green balls = 2 Blue balls = 5

Q: You decide to sample from two random variables X and Y. You take 61 observations from X and find it ...

A: Given that, sample from two random variables X and Y. You take 61 observations from X and find it ha...

Q: An auto parts store sells 781 oil filters over 110 weeks. Use the Poisson distribution to find the p...

A: poisson distribution is given by

Q: B. Directions: Consider the random variable T. Find the following probabilities. 1. P(-to.025 <T < t...

A: Given, Consider the random variable T.

Q: In a certain geographic location tornados occur on average twice every nine months. What are the odd...

A: The average no.of tornados occur every nine months is 2so, The average no.of tornados occur everysix...

Q: Text the hypothesis that o 8 given that s = 10 for a random sample of size 51.

A:

Q: TOPIC: Distinguishable Permutation 1. Determine the number of permutations of the following words. ...

A: Permutation formula = nPr = n!/(n-r)!  

Q: (a) List all outcomes in S. S. (b) Let A denote the event that 1 wins the tournament. List outcomes ...

A: Here Given Four universities 1,2,3,4 participated in the tournaments The Position is shown the accor...

Q: Two balls are selected at random from an urn containing two white balls and three red balls. What is...

A:

Q: Urn I contains three red chips and one white chip. Urn II contains two red chips and two white chips...

A: Given that, Urn I contains 3 red chips and 1 white chip. Urn II contains 2 red chips and 2 white chi...

Q: Suppose 2% of students drink more than 3 cups of coffee each day. To check this claim, a researcher ...

A:

Q: The following is a joint probability mass function. 1 1 2 4 y 3 4 6 fxx(x, y) 1/8 1/4 1/2 1/8 Determ...

A:

Q: IUNICATION What is the relationship between experimental probability and theoretical probability? Gi...

A: We have to give explanation for the relationship between experimental probability and theoretical pr...

Q: Out of 5 mathematicians and 7 physicists, a committee consisting of 2 mathematicians and 3 physicist...

A:

Q: In a standard deck of 52 cards, there are 4 suits (Spades, Hearts, Clubs, Diamonds) and 13 cards in ...

A: The inclusion-exclusion principle is used to find the number of elements in the union of finite numb...

Q: Consider a sequence {X,,n = 1,2, 3, ·.} such that with probability Xn = 1 with probability a.s. Show...

A: @solution::::

Q: A manufacturer of blades knows that 5% of his product is defective. If he sells blades in boxes of 1...

A:

Q: A jar has 3 blue balls, 2 white balls and 5 red balls. A ball is selected at random and the color no...

A: According to the given information, we have Number of blue balls = 3 Number of white balls = 2 Numbe...