A set of data items is normally distributed with a mean of 50 and a standard deviation of 8. Convert 50 to a z-score. Z50 = (Do not round until the final answer. Then round to the nearest hundredth as needed.)

Q: The joint probability distribution function of a discrete random variable is f(x,y) = cxy for x-1,…

A: Given information: fx,y=cx2y for x=1,2,3 and y=1, 4, 16 The value of c is obtained below:…

Q: Give the marginal probability of (e) * X = number of Bars of Signal Strength Y = response time…

A: Marginal probability of a random variable is the unconditional probability irrespective of other…

Q: Let X be a random variable with probability density function, What is EX? , What is Var(X)? cx(5 –…

A:

Q: 3 students are choosing between loose leaf, hardback and electronic texts. Studies have show that…

A:

Q: The joint probability distribution function of a discrete random variable is f(x, y) = cx /y for…

A:

Q: I. Evaluate the following permutations. 19. 20. P.

A: Given that  19.. 9P3/8P4   20... 10P7/8P6

Q: answer quickly

A:

Q: If a standard six-sided is rolled, what is the probability of rolling an odd number

A: We have given that,  A standard Six-sided is rolled then the sample space (s) is,  s = {1, 2, 3, 4,…

Q: V. How many different ways can the letters of each word can be arranged?

A: HERE USE COUNTING PRINCIPLE

Q: 2. Let X be a Chi-squared random variable with density function fx(x) = oxp (-). > 0. Suppose Y is…

A: Solution

Q: In a health examination survey of a prefecture in Japan, the population was found to have an average…

A: Given Data : Population Mean,μ = 99 Population Standard Deviation,σ = 12

Q: Question * The joint distribution of the random variable X and Y is given in the following table: X…

A: Let X and Y be two discrete random variables defined over the sample space S. Then the function f(x,…

Q: utes, 49 seconds. * Question Completion Status: A Moving to the next question prevents changes to…

A:

Q: In the instant lottery with 10% winning tickets, if X is equal to the number of winning tickets…

A: Givenp=0.10sample size(n)=8Let "x" be the no. of winning…

Q: ers are a subset of vegetables. D. Birds are a subset of mammals. 3. If the universal set is the set…

A:

Q: What is the probability that there will be exactly 4 red balls among the chosen balls? b. Given that…

A: An urn consists of 20 red balls and 30 green balls. We choose 10 balls at random from the urn. The…

Q: Then the mean number (to the nearest whole number) of students who will finish the exam in less than…

A: The disyribution function is defined as F(x) = P(X ≤ x)  Let Y be the probability that a student…

Q: Question * Given the continuous random variables X and Y with joint probability density function: xy…

A:

Q: M&M's, 132 M&M's are blue, 69 are green, 68 are brown,   63 are olive, 62 are teal, 60 are navy, 56…

A: 1023 M&M in a bag Blue 132 Green 69 Olive 63 Brown 68 teal 62 navy 60 Black 56…

Q: 2. - Construct a tree diagram for the following experiment. If a letter is randomly drawn from Box…

A: We need to construct a tree diagram: If a letter is randomly drawn from Box 1 put into Box 2, and…

Q: Then the mean number (to the nearest whole number) of students who will finish the exam in less than…

A: The distribution function is defined as F(x) = P(X ≤ x) Let p be the probability that a student…

Q: Given the continuous random variables X and Y with joint probability density function: (x. y) =…

A:

Q: The following table shows estimates of activity times (in weeks) for a project: Optimistic Most…

A:

Q: Consider the following subsets in the universal set U = {natural numbers from 1 to 10} X= {factors…

A: Solution-: Given: U={Natural numbers from 1 to 10}            X={Factors of 16}, Y={Factors of 8}…

Q: If the joint probability distribution of X and Y is given by * x+y f(x,y) : ,for x = 0,1,2,3; y =…

A: The joint probability distribution of X and Y is given as follows: f(x,y) X 0 1 2 3…

Q: Test scores for a given class are normally distributed with a mean of 80 and standard deviation 14.…

A: Given that, the test score is normally distributed with           mean,μ=80 and           standard…

Q: 16. A bag contains 4 chocolates, 7 jellybeans, and 9 gummy bears. A candy is picked from the bag.…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: Given the continuous random variables X and Y with joint probability density function: fx. y) = x+…

A:

Q: Test scores for a given class are normally distributed with a mean of 80 and standard deviation 14.…

A: Given that mean = 80 ,s.d = 14,p value = 0.10

Q: A sample of 16 items has an average fat content of 20 grams and a standard deviation of 2 grams.…

A: According to the given information in this question We need to construct 99% confidence interval

Q: (a) Write down the probability mass function of X. (b) Find the probability of observing an even…

A:

Q: A coin is tossed 10 times. Find the probability that at least one is a head. The probability that at…

A:

Q: In the instant lottery with 30% winning tickets, if X is equal to the number of winning tickets…

A: Solution-: Given: n=8, p=0.30 (or 30%) We want find, P(purchasing two winning tickets)=?

Q: If the probability of a person winning on a scratch-off lottery ticket is 0.375, the odds of winning…

A:

Q: 6. C, C, C,

A: GIVEN EVALUATE EACH 8C2.6C2.4C2

Q: (a) Suppose that 20 % persons in a large group of people are obese. If persons are checked one by…

A:

Q: 4. Find the mean of the probability distribution of the random variable X, which 10 P(2) = 33 and…

A:

Q: (a) Among nine randomly selected goblets, how likely is it that only one is a second? Recall that…

A: Given: probability=18%n=9

Q: IL. Solve each of the following problems. R A card is drawn from a standard deck of 52 cards. Find…

A: Given problem Given that   13)   A card is drawn from a standard deck of 52 cards. Number of…

Q: One represents a population distribution. The other two are sampling distributions of x-bar; one for…

A: The Histogram for Population: The population data contains all the information about the…

Q: (b) Among nine randomly selected goblets, what is the probability that at least two are seconds? To…

A:

Q: 4. Getting a red card 5. The card is a face card. 6. Drawing a numbered card. 7. The card shows a…

A: (4)   Determine the number of ways of drawing a red card.   The number of ways of drawing a red card…

Q: vey of 38 families found that their newborn child used an average of X-3,796 diapers in their first…

A:

Q: Take a standard deck of 52 cards (13 cards of each of the 4 suits, 4 cards of each of the 13 ranks)…

A: An event is considered positive if it has a non-zero probability of occurrence. A probability will…

Q: 17. A number card is drawn from a deck consist of 1, 2, 5, 8, 12, 15, 16, 20, and 25. Find the…

A: Ans# -  A number card is drawn from a deck consisting of 1, 2, 5, 8, 12, 16, 20 and 25…

Q: Question * The joint probability distribution function of a discrete random variable is f(x, y) =…

A:

Q: 30. The number of floats in the last Panagbenga Festival is about 50. This year, it is expected that…

A: here given , The number of floats in the last Panagbenga Festival is about 50. This year, it is…

Q: The average number of radioactive particles emitted by a material is 4 per hour. By the Poisson…

A: Given that, The average number of radioactive particles emitted by a material is 4 per hour.

Q: Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the…

A: See the handwritten solution

Q: Let X and Y be two continuous random variables with joint probability density function given by:…

A: option A is the correct answer.