Abigail needs to create a four-digit password to access her voice mail. She can repeat some of the digits, but all four digits cannot be the same. Determine, to the nearest percent, the probability that her password will be greater than 6300.

Q: solution From numbers 1 to 100, what is the probability of getting even numbers that add up (the dig...

A: There are n= 100 We know probability = favorable outcomes /total outcomes are 

Q: 2. The joint density function of X and Y is given by fxv(x,y) = {@*y* Scxy2 x – 1< y<1-x, 0 <x<1 els...

A: As per the policy we are providing you the solution of first 3 sub parts . You can ask remaining que...

Q: single die is rolled twice. Find the probability of rolling a 4 the first time and a 3 the second ti...

A: Given:  a single die rolled twice then total sample space S=36  to find probability of rolling that ...

Q: I toss a fair coin twice, and let X be defined as the number of heads I observe. Find the range of ...

A: Assume that H denotes the head and T denotes the tail.

Q: In your school with 400 Grade 11 students, the final examination in General Mathematics has a mean 3...

A: From the provided information, Mean (µ) = 38 Standard deviation (σ) = 4 X~N (38, 4) Here X be a rand...

Q: on 16.47. A total of 100 people was surveyed. 60 of them were smokers-40 being male and 20 being fem...

A:

Q: The random variable x is known to be uniformly distributed between 20 and 40. The probability of x h...

A: Given a = 20 b = 40

Q: A coin is tossed and a die is rolled. Find the probability of getting a head and a number greater th...

A: When a coin a tosses and a die is rolled simultaneously then sample space is  S={(Head,1), (Head,2) ...

Q: In a lottery, the top cash prize was $646 million, going to three lucky winners. Players pick four d...

A:

Q: Following are average high and low temperatures in January for 6 randomly selected cities Here, x de...

A:

Q: 3. Suppose that X has a Poisson distribution with h = 80. Find the probability RCX< 70) based on the...

A: Given that, h= 80  It means that  Mean= 80 which is greater than 10. So normal approximation is reas...

Q: Which among the value is approximately equal to P(0.99<Z<1.5) A.) 0.0943 B.) 0.2333 C.) 0.7333 0.772...

A: which among the value is approximately equal to P(0.99&lt;z&lt;1.5)

Q: Out of a group of 60 people, 20 invested in stock market, 35 had certificates of deposit, and 34 had...

A: Let S denote the event of someone investing in stocks, D denote the event of someone investing in de...

Q: Discrete Probability Distribution A company makes candy-coated chocolates, 40% of which are red. The...

A:

Q: To perform a certain type of blood analysis, lab technicians must perform two procedures. The first ...

A: Suppose an experiment must perform two procedures. That is, A and B. A requires either a1 or a2 step...

Q: 3. 1 card is drawn at random from the pack of 52 cards. (i) Find the Probability that it is an Ace, ...

A:

Q: Éxample 12. Calculate the mean deviation about the mean for the following data: 5 15 25 35 45 55 65 ...

A:

Q: Write clear please

A: Given

Q: (c) Students from School D and School B cannot be in the same row; (d) Students from SchoolD and Sch...

A: Here AS per note given I have calculated C and D

Q: standard error.

A: a. The given information in Non-college Grades Y=2890      Average salariessY=520     standard devia...

Q: A psychologist determined that the number of sessions required to obtain the trust of a new patient ...

A:

Q: Exercise 5.4 A lot of 75 washers contains 5 defectives whose variability in thickness is unacceptabl...

A: Probability mass function : A probability mass function (pmf) is a function over the sample space of...

Q: a) Find the mean. (Round to three decimal places as needed.) b) Find the standard deviation. (Round ...

A: Here use given pdf for mean and standard deviation and probability 

Q: llustration 16.81. Two packs of cards are made up in such a way that the first pack consists of 39 r...

A:

Q: Binomial Probability Problem 80% of people who purchase LIFE insurance are women. If 10 Life insuran...

A:

Q: What is the difference between the t-distribution and the standard normal distribution? A.) the t-di...

A: We ha e given that the statement about to the t-distribution and normal distribution. Here, we need ...

Q: Suppose that the random variable z has a standard normal distribution. Sketch each of the following ...

A:

Q: A coin is weighted in such a way that it lands "heads side up" 70% of the time. The coin is to be fl...

A: Given that p =0.7 ,n=8,k=5 Using negative binomial distribution Find the probability given

Q: For items 1-3, please refer to the problem below: The average grade of the students in Statistics is...

A:

Q: Three piggy banks each contain 20 coins: • Piggy Bank # 1 contains 12 gold coins, 5 silver coins and...

A: Probability : Probability is a field of mathematics that deals with numerical descriptions of how pr...

Q: The following diagram shows the keypad for an automatic teller machine. As you can see, the same seq...

A: Given:    

Q: 2.2. Suppose the time T in seconds between cars arriving at an intersection has a probability densit...

A: Given that the time T in seconds between cars arriving at an intersection has a probability density ...

Q: A number cube is rolled and a coin is tossed. The number cube and the coin are fair. What is the pro...

A: if a number cub is rolled and a coin is tossed than the possible outcomes are1,T1,H2,T2,H3,T3,H4,T4,...

Q: If you are dealt 4 cards from a shuffled deck of 52 cards. Find the probability that all 4 cards are...

A:

Q: A lot containing 7 components is sampled by quality inspector. The lot contains 4 good components an...

A:

Q: 1 is not convergent. Theorem 1.8.2 E n = 1

A:

Q: A single die is rolled twice. The 36 equally-outcomes are shown in the picture. Find the probability...

A:

Q: Suppose B is a Brownian motion. Please answer the following questions, justifying your answers: a. F...

A: Given B is a Brownian motion.

Q: Pr(A n B) = 0.1 Pr(A) = 0.2 Pr(B') = 0.5 Hence, fill in the intersection table: A A' В B'

A: It is given that Pr(A∩B)=0.1, Pr(A)=0.2 and Pr(Bl)=0.5.

Q: (c) The probability that the second marble is red

A: Given that, bag contains 8 red marbles, 7 white marbles, and 9 blue marbles. Randomly choose two mar...

Q: Nutritional value of Children's Breakfast Cereals: A nutritious breakfast is the best way for your c...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: a) Given that X ~ B(n,p) where n is a positive integer and 0 <p < 1. It is known that X has mean 12 ...

A: We have given that   X ~ B( n, p ), where n is a positive integer and 0&lt;p&lt;1. The mean of X is ...

Q: The assembly time for a product is uniformly distributed between 9 and 14 minutes. The probability o...

A:

Q: Illustration 16.20. If a machine is correctly set up, it will produce 90% acceptable items. If it is...

A:

Q: In a group of 11 students, there are 6 females and 5 males How many different 4-member committees ar...

A:

Q: Suppose the age a student graduates from Salem State is Normally distributed. If the mean age is 23....

A:

Q: Interpret the measure of position as given in the information below. According to the study, the pos...

A: In statistics, measures of position are used to locate a single value with respect to the other valu...

Q: Exercise 4.1 The number of defects on the front side (X) of a wooden panel and the number of defects...

A:  

Q: Please answer all. Thank you. Which of the following random variables would require that the confide...

A: Which of the following random variables would require that the confidence interval for the proportio...

Q: For the probability density function f defined on the random variable x, find (a) the mean of x, (b)...

A: