Which of the following stocks is riskier if you are considering investing in X or Y only? Stock Standard Deviation Coefficient of Variation 40% 2. Y. 40% O X and Y have the same risk because they have the same standard deviation. OX OY

Q: Three fair coins are tossed. find the probability that they are all heads if the first coin is head…

A:

Q: o=58. From sample sizes of 36 adults find the proportion of sample means having values of at least…

A: here , sample size  = 36 population  mean = 162 population standard deviation = 58

Q: A bag contains 44 U.S quarters and six Canadian quarters. If seven quarters are randomly picked from…

A: Given that. Total quarters=44+6=50 U.S quarters=44 Canadian quarters=6 Find P(at least 1 Canadian…

Q: 25. A pair of dice is rolled. What is the probability of getting a. a total of 6 or 8? b. a total of…

A: Given that,  a pair of dice is rolled. We need to find the probability of getting: a. a total of 6…

Q: What is the Reliability of the system below?

A: We know that the when the component is arranged in a series system then the resultant reliability is…

Q: 8. A particular brand of diet margarine was analyzed to determine the level of polyunsaturated fatty…

A:

Q: Number plates in an Arab country consist of 3 letters (chosen from a specified set of 20 letters…

A:

Q: Prove or disprove. Given n (n > 1) events A. A,. .A, E5, then n PIA]- PIA, N A,] < PIJ4;]< P[A,] i=1

A:

Q: Probability Skyler has 12 marbles as shown in the diagram below. Each marble is either blue or…

A: From the provided information, Total marbles = 12 Total blue marbles = 8 Odd numbered marbles = 8…

Q: Q/ In the vehicle speed test, the results are given in the table below: Find 1. ArithmeticC mean 2.…

A:

Q: Company XYZ know that replacement times for the DVD players it produces are normally distributed…

A: Let X be the time length of the warranty  from normal distribution with mean (μ) = 9.3 and standard…

Q: Prove or disprove. Given n (n > 1) events A, A, .. An E5, then Σεν P[A] – PIA, nA,] < PIJA]s P[A;] -…

A: Solution: From the given information, it is needed to prove or disprove

Q: 3. A group of students got the following scores in a test: 6, 9, 12, 15, 18, and 21. Consider…

A:

Q: In a city, the bus route numbers consist of a natural number less than 100, followed one of the…

A: In a city, the bus route numbers consist of a natural number less than 100, followed one of the…

Q: 6. The time between calls to a plumbing supply business is exponentially distributed with a mean…

A:

Q: Suppose it is known that the mean and the standard deviation for a given population are 65 and 8,…

A:

Q: . A nationwide survey of college seniors by the University of Michigan revealed that almost 70%…

A: Given that n =12,p=0.7 a. find the p( 7&lt;=x&lt;9) =? b. find the p(x&lt;=5) =? c. find the p(…

Q: Choosing 2 letters from the word GREEN. Write the sample space.

A: here given word "GREEN"  and sample space is set of all possible outcomes

Q: 24. From a bag containing 5 blue balls, 3 yellow balls, and 2 balls, 1 ball is drawn. Find the…

A: Solution

Q: a little league manager has 12 children on her team. How many ways can she form a 9- player batting…

A: Given that  Total player=12 Batting order player=9 Find the number of ways can she form a 9 player…

Q: Find the value of z for the probability statement: P (-z <Z<z) = 0.788, %3D

A: Given that  Probability statement  P(-z&lt;Z&lt;z) = 0.7887

Q: You are conducting a study to see if the accuracy rate for fingerprint identification is…

A: Solution-: Given: n=716,x=149,P0=0.22,α=0.005 We find, Hypothesis Test statistic p-value Decision…

Q: 1. Change the following decimals to percent. .58 .02 .32 .985

A: Given that  Change the following decimal to percent  A) 0.58    B) 0.02  C) 0.32 D) 0.985 Note:…

Q: Let X and Y be jointly continuous random variables with joint PDF is given: f X,Y (x.y) I co,l) a) I…

A:

Q: Refer to the following payoff table:     State of Nature Alternative S1 S2 A1 75 −40 A2 0 100…

A: Given that  The unconditional probability is

Q: = 2004 presidential election exit polls from the critical state of Ohio provided the following…

A: We have given that,  Favorable cases (X) = 412 and sample size (n) = 768  Then,  We will find the…

Q: Verify that p(x) = 9x¬10 is a probability density function on [1, ∞) and calculate its mean value.…

A:

Q: 0,8 0.2] A Markov chain has the transition matrix shown below: 1 P = (1) Find the two-step…

A:

Q: 1. what is the probability for less than 125 points of the customer? 2. what is the percentage of…

A:

Q: 3 males and 3 females are sitting in two parallel rows containing three people each. Find the…

A: The probability of an event is the ratio of the number of cases favorable to that event to the…

Q: If X~N(0,1) then X2~

A: In question,  Given that X~N(0,1). Then we'll find the distribution of X2. he solution is below,

Q: Classify the following events as dependent or Independent. a) The experiment is tossing a coin and…

A:

Q: 3. The time between arrivals of taxis at a busy intersection is exponentially distributed with a…

A:

Q: . In a binomial distribution with p=0.02 and n=70, what is the actual probability of three success?…

A: p =   = 0.021- p = 1 - 0.02 = 0.98n= 70 X ~Binomial(n, p) X follows the Binomial (70 ,0.02)The PMF…

Q: What is the probability that the city will be hit by a tornado next year?

A: Studies show that historically a certain city is hit by a tornado about once every 5 years. so here…

Q: Questions 13-15 are based on the following American workers spend an average of 60 minutes to and…

A: P value is greater then the level of significance  We fail to reject the null hypothesis  There is…

Q: Z (a) Show that the joint pdf for U, V is of the form f(x, y) = {2 exp(u-v), if (u, v) E A otherwise…

A: The joint density of U and V can be calculated by using Jacobian method of transformation.

Q: The Joint Distribution of the Minimum and, Maximum EX2: Pyoof Fx()X(m) (x, y) = P(X(1) < , X (n) <…

A: We need to prove the joint distribution of the Minimum and Maximum,  such that:

Q: Give the value of the following: 1. C(4,4) 3. C (29,29) 5. С (10,1) 7. с (5,4) 4.

A: According to bartleby expert guidelines we can answer only first three subparts. Rest can be repost.

Q: identify The research hypothesis H1 The null hypothesis HO The rejection region of the null…

A: Test is that whether students who change schools have a lower academic performance than those who…

Q: 6 A factory produces bars of chocolate that follow a Normal Distribution with a mean weight of 70g…

A: We have given that  Mean = 70  Standard deviation = 3 Variance= 9

Q: ere 2020 respondents in the exit polls and 768 were college graduates. Of the college graduates, 412…

A: We have given that,  Favorable cases (X) = 412 and sample size (n) = 768 Then,  We will find 95%…

Q: Two cards are drawn at random from a deck of 52 cards without replacing the first card before…

A: We know that There are 52 card in the deck in which they divided into two color i.e red(26) and…

Q: An adult rabbit's average length is 30cm, with a standard deviation of 4cm. What is the probability…

A: From the provided information, Mean (µ) = 30 cm Standard deviation (σ) = 4 cm X~N (30, 4) Here X…

Q: What is the probability of winning the award?

A: here given lottery gives you an award if you are able to choose correctly at least 5 numbers out of…

Q: Ex. 1. A contractor purchases a shipment of 30 computers. It is assumed that, the number of…

A:

Q: A safe box requires a new user to set up a 6-digit code before using it. The user is llowed to only…

A: Given that,  A safe box requires a 6 digit code. The user is allowed to only set up the code using…

Q: A bowl contains 3 red chips and 4 white chips. Three chips are drawn from the bowl. What is the…

A: Given Information: There are 3 red chips and 4 white chips. Three chips are drawn from the bowl. The…

Q: 6 A factory produces bars of chocolate that follow a Normal Distribution with a mean weight of 70g…

A:

Q: uppose you are playing a game where you bet $5 and have a 48% chance of winning. The bet is 1:1.…

A: Given that  Suppose you are playing a game where you bet $5  Chance of winning = 48%  P(win) = 0.48…