A sample of 64 was taken from a population, with the mean of the sample being 25 and the standard deviation of the sample being 2. What is the 95% confidence interval for the mean of the population? O A. (24.75, 25.25) B. (24.2, 25.8) C. (24, 26) D. (24.5,25.5)

Q: Find the expected value, variance, and standard deviation of the following probability…

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

Q: P(X) € 2C 3C 3C Find 1- Value of C. 2- Probability mass function describing the distribution of X.…

A: We have given that X be a discrete random variable with probability mass function in table form. The…

Q: Two different types of injection-molding machines are used to form plastic parts. A part is…

A:

Q: Q1: A craftsman has three identical boxes, each with two identical drawers. In the first box, one…

A:

Q: (b) Five pennies were tossed 1000 times, and at each toss the number of heads was observed. The…

A: Frequency Distribution The number of points an incident or a measure tends to happen is referred to…

Q: 7. If there are 12 representatives in SSG (Supreme Student Government), how many different sets of…

A: As per the Bartleby guildlines we have to solve first question and rest can be reposted...   Given…

Q: In how many ways can the letters be arranged so that all the vowels come together? Word is…

A: Given : In how many ways can the letters be arranged so that all the vowels come together? Word is…

Q: 11.1 Events A and B are independent .Given that ● P(A only) = 0.4 P(A and B)= 0.3 ● P(B only) = x ●…

A:

Q: The probability density function of the length of a cutting blade is f(x) = 1.25 for 74.6 75.2) = ₁…

A:

Q: A bag contains 7 red marbles, 6 blue marbles and 4 green marbles. If three marbles are drawn out of…

A:

Q: Suppose a normal distribution has a mean of 50 and a standard deviation of 3. What is P(x≤ 47)? OA.…

A:

Q: a) rejected whereas the mean strength is actually 5000 kg=cm2 b) accepted whereas the mean strength…

A:

Q: 17 male and 20 female undergraduate students are randomly selected from the faculty of mechanical…

A:

Q: Determine the probability density function for the following cumulative distribution function. F(x)…

A: Given F(X)=1-e^-2X X=0.3

Q: 7). 7) The waiting time (in minutes) between ordering and receiving your meal at a certain…

A:

Q: A person has 12 books: 4 mystery, 6 science fiction, and 2 romance. How many ways can the books be…

A: It is given that  Total books = 12 Mystery books = 4 Science fiction book = 6 Romance book = 2

Q: 6. Two independent random variables X1=(-1,0,1) and X2=(-1.0) can take the following probability…

A: Expected value is also known as mean or average. It used to take average for discrete or continuous…

Q: find the probability that all 3 women use a computer in their jobs.   (PERCENTAGE FORMAT)

A: It is reported that 72% of working women use computers at work.  p = 0.72 = probability of working…

Q: In a color preference experiment, eight toys are placed in a container. The toys are identical…

A:

Q: A. Calculate each of the following. 1. P (5,2) 2. P (6,6) 3. P (10, 6) || 4. P (7,6) 5. P (n, 3) =…

A: here AS PER GUIDELINES I HAVE CALCULATED FIRST MAIN QUESTION  Here use basic of permutation

Q: A transportation company has one motorbike, 3 cars, 5 vans and 6 busses. An LTO official will…

A: The formula for combination is nCr = n! / [r! (n – r)!] = [n (n – 1) … (n – r + 1)]/r!. Explanation:…

Q: According the the U.S. Census bureau, the percentage of Santa Ana residents living in poverty is…

A: Given P1^=0.177 P2^=0.133 n1=1200 n2=1500

Q: drawn at random and without replacement from a bag containing two blue chips and two red chips.…

A: Given: n(blue) = 2 n(red) = 2 n(total) = 4 n(drawn) = 2 A :Both chips are red.

Q: The average stock price for companies making up the S&P 500 is $30, and the standard deviation is…

A: (a) Obtain the probability that a stock price of a company will be more than $40. The probability…

Q: vo random variables X-(-1,0) and Y=(2,3) are equiprobable and independent. Determine the

A: Given that there are two random variables. X=(-1, 0) and Y=(2, 3). Both equiprobable. That is,…

Q: Let X and Y have joint PDF cy fxx(z,y) = { 0 0≤y≤z≤1 0 otherwise a) Draw the region of positive…

A: The joint pdf is given  We need to find certain questions.    Note :As per guidelines only first 3…

Q: Paula tosses a fair coin five times. Suppose we define two events: A: Paula gets an odd number of…

A:

Q: Q2: If P(A)=0.25, P (B)=0.45, P (AB)=0.43, draw the Venn diagrams and determine the following…

A: It is given that P(A) = 0.25, P(B) = 0.45 and P(Ac ∩ Bc) = 0.43 Note : According to our guidelines…

Q: Construct all random samples consisting of four observations from the given data. List all the…

A: Solution-; Given data: 84,87,90,93,96 List all the possible outcomes, get the mean of every sample,…

Q: Assume X is normally distributed with a mean of 13 and a standard deviation of 2. Determine the…

A: as per Bartleby guideline expert have to answer first question three subparts only dear student…

Q: Q4: Let X be a discrete random variable with probability mass function given in the following table:…

A:

Q: Suppose that Xhas a normal distribution, Find E[ex].

A: Solution-: Suppose, X has a normal distribution We want to find, E(ekx)=?

Q: On what situations in chance experiments can the following probability distributions be used?…

A: The answer is below,

Q: The following table of probabilistic time estimates (in weeks) and activity predecessors are…

A: GivenThe table of probabilistic time estimates in weeks and activities predecessors as shown below

Q: 3. Either draw a graph with the specified properties or explain why no such graph exists. a. Graph…

A: Given problem is :

Q: Activity 4: Amusement among cards 1 . . OUTPUT DIRECTION: Answer the following questions. 1. How…

A: (1)   Determine the number of black cards in the deck of cards.   The number of black cards in the…

Q: For which sample size (n) and sample proportion (6) can a normal curve be used to approximate the…

A: Answer :- Find  for which sample size (n)  and sample proportion (P^)  can a normal…

Q: What is the probability of rolling one six sided die and obtaining a 1 and a 2 in consecutive rolls?

A: The sample space for rolling a one six sided die is S = { 1, 2, 3, 4, 5, 6 }.

Q: Three dice were rolled. Find the probability of getting a number less than 10 if it is known that…

A:

Q: How many distinct arrangement can be formed from the letters of the word "ENGINEERING" with letter E…

A:

Q: SP Q5: Suppose that X₁ and X₂ are independent random variables each having a standard normal…

A:

Q: Data showed that 22% of people in a small town were infected with the COVID-19 virus. A random…

A:

Q: Three dice were rolled. Find the probability of getting a number less than 10 if it is known that…

A:

Q: When designing equipment, one common criterion is to use a design that accommodates 95% of the…

A:

Q: (Statistical Anaylsis) For the following graph, explain the reason for every statistic that is…

A: Given Information: Consider the pie chart that shows the proportion of male cases. The descriptive…

Q: The local high school is hosting an ice cream social for new students. They record the ice cream…

A: Formula : P(A|B) = P(A and B)/P(B)

Q: probability that the person will purchase three different newsletters on three consecutive mornings…

A: here given , person randomly picks and buys one of the four newsletters in the street each morning .

Q: In an aquarium, there are 10 large fish and 5 small fish. Half of the large fish are red. One fish…

A: Solution-: Given: There are 10 large fish and 5 small fish. Half of the large fish are red.  If one…

Q: 1. A card is randomly drawn from a standard 52-card deck. Find the probability of the given event.…

A: Since you have posted multiple question, We are entire to solve only first question for you, Please…

Q: The drug successfully treats 90% of cases. Calculate the probability that he will cure at least 8…

A: