10. If a student is chosen at random from the group, what is the probability that the choice will contain more than 10 characters and a digit sum greater than 20?

Q: A student is taking a multiple-choice exam in which each question has four choices A, B, C, and D.…

A: Note:- "Since you have posted a question with multiple sub parts, we will provide the solution only…

Q: Find the PMF of X. Find the expectations E[X] and E[XY] Find the variance of X.

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

Q: 3. A drug company claims that if you take their new wonder drug "Ainstats", that you will r your…

A: A drug company claims that if you take their new wonder drug "Ainstats", you will raise your grade…

Q: You and your friend carpool to school. Your friend has promised that he will come pick you up at…

A: Answer:- Given, The amount of time he is late (X in minutes) is a continuous Uniform random variable…

Q: A certain university claims that 76% of its female students and 65% of its male students receive…

A: The student body consists of 5340 males and 4950 females.

Q: A display case of lottery tickets contains 5 winning tickets and 45 tickets that will n win. Seven…

A: Here, we have given that the display of lottery tickets contains 5 winning tickets and 45 tickets…

Q: ur car leasing agency has 12 red and 15 blue cars in stock. In how many ways can an 11-car group be…

A: given data, 12-red 15-blue27-total carsan 11-car group be selected consisting of seven red and four…

Q: If Mrs. Hiatt chooses two students, what is the probability that Emily will not be one of them?

A: Mrs. Hiatt puts the names of all 15 of her second period students on popsicle sticks and places them…

Q: Poker Calculate the probability of being dealt the following poker hand. (Recall that a poker player…

A: It is required to find the probability of choosing a straight poker hand, that is, a hand with cards…

Q: In our Discrete Maths class of 100 students, 40 students own a laptop, 25 students own a tablet and…

A: n(students own a laptop)=40 n(students own a tablet)=25 n(students own both)=15 Total no.of…

Q: You choose a die at random, and roll it six times, getting the values 4, 3, 6, 6, 5, 5. What is the…

A: Assume that you have two dice, one of which is fair, and the other is biased toward landing on six,…

Q: 4. Suppose that the probability density function of X is f(x) = {3x² 0<x< 1 0 elsewhere Determine P…

A: The required probability is,

Q: 11. Let X, Y, Z have the joint PDF f(x, y, z)= 6(1+x+y+z) 10 Find the PDF of U=X+Y+Z. if 0 < x,0 <y,…

A: To find the PDF of U = X + Y + Z, we will use the method of transformation of variables. First, we…

Q: The probability of tails of a weighted coin is 0.58. The number of tails is noted each of the 25…

A: Answer  Given  The probability of tails of a weighted coin is 0.58. The number of tails is noted…

Q: If z is a standard normal random variable, find the probability. The probability that z lies above…

A: Answer: From the given data, Z is a standard normal variable  For a standard normal variable, mean…

Q: An ice cream parlor offers 28 different flavors of ice cream. One of its items is a bowl consisting…

A: The ice cream parlor offers 28 different flavors of ice cream.

Q: 4. In what range do the middle 95% of all IQ scores lie in this age group? 5. About what percent of…

A:

Q: f her most popular works. If she signs with the network she will receive he signs with the movie…

A:

Q: Compute the indicated quantity. P(B) = = P(A/B) = 0.4, P(AB) = 0.3. Find P(B).

A: P(A|B) = 0.4, P(A ∩ B) = 0.3 then,  We will find P(B) = ?

Q: A factory tests a random sample of 17 transistors for defects. The probability that a particular…

A: n=17 r=0 P=0.06 q=0.94

Q: Suppose that a cookie shop has an unlimited supply of four different kinds of cookies, how many…

A: If the cookie shop has an unlimited supply of four different kinds of cookies, and you want to…

Q: (c)The failure ages of a particular electrical component are observed to follow an exponential…

A: The failure ages of a particular electrical component are observed to follow an exponential…

Q: For this study, we should use     The null and alternative hypotheses would be:       �0:…

A: As per guidelines i have calculated 3 subparts plz repost for remaining with note i need this this…

Q: 2. An email spam filter applies the test to each incoming email.Suppose 80% of all emails are spam,…

A:

Q: Dylan wants to determine a 99 percent contidence interval for the true proportion p of high school…

A: Margin of error(E)=0.04 Assume sample proportion(p^)=0.05

Q: It is given that 5% of the flower pots arriving to the florist are broken. Find the probability when…

A:

Q: Suppose we draw two tickets from a hat that contains tickets numbered 1, 2, 3, 4. Let X be the first…

A:

Q: Suppose that events M and N are mutually exclusive, P(M)= 0.6, and P(N) = 0.8 What is P(M and N)?…

A: P(M)= 0.6, and P(N) = 0.8

Q: The pdf of X is given by a+bx³, if a € [1,3] otherwise f(x) = { To Find all possible values of a and…

A: Answer:- Given, the pdf of X is:    f(x) = a + bx21≤x≤30otherwise                 Find the possible…

Q: For each question there are four choices marked, 2, 3 and 4 Choose only ONE that is the best answer.…

A: X-1012pi0.20.20.40.2 and Y=X2+1 Now we need to determine the values that Y can take on and their…

Q: It is given that 5% of the flower pots arriving to the florist are broken. Find the probability when…

A: It is given that 5% of the flower pots arriving to the florist are broken.

Q: You roll a fair die seven times. What is the probability that the die lands on the number 4 on…

A: Given data, For a fair die, the sample space is {1,2,3,4,5,6} The probability that the die lands on…

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing…

A: The bag contain three red marbles, two green ones, four white ones and two purple ones. She grabs…

Q: Let X be a geometric distribution with parameter 0 k) = (1 − p)^k for every k belongs to the set of…

A: a) We can use the definition of the geometric distribution to prove this statement. Let X be a…

Q: At the end of a course the final grade is decided with the help of an oral examination. There are a…

A: (a) To maximize the chances of drawing an easy subject, the best position to choose is the fifth…

Q: Consider the accompanying sample data on expense ratio (%) for large-cap growth mutual funds. 0.54…

A: 0.54,1.01,1.21,2.16,1.58,0.96,1.09,1.08,1.82,2.06, 0.90,0.78,1.35,0.59,1.53,0.99,1.05,1.76,1.05,1.20…

Q: Pages were randomly selected from The Bear and the by Tom Clancy, Harry Potter and the Sorcerer's…

A: The null  and Alternative Hypotheses:- Ho:μ1 =μ2=μ3H1: At least one of the mean is different from…

Q: A magician shuffles a standard deck of 52 cards and has an audience member choose any card from the…

A: Answer  A magician shuffles a standard deck of 52 cards.

Q: Question 1 In a particular state, the license plates have 7 characters. Each character can be a…

A: Number of character in licences plat = 7 characters. Number of possible digits or letter = 9 digits…

Q: 69°F Cloudy Find the first and third quartile for the data shown X 1.6 2.3 5 7.3 17.8 23.8 24 24.1…

A: X=1.6,2.3,5,7.3,17.8,23.8,24,24.1

Q: You are interested in determining which of two brands of light bulbs, brand A and brand B, lasts…

A: The objective of the study is to determine which brand among brand A and brand B lasts longer under…

Q: Poker Calculate the probability of being dealt the following poker hand. (Recall that a poker player…

A: It is required to find the probability of choosing a three of a kind poker hand, that is, a hand…

Q: Fill in the blanks using the named events. A? 30% of all lawyers who lost clients (L) were antitrust…

A: We have given that, 30% of all lawyers who lost clients L were antitrust lawyers A, whereas 10% of…

Q: hypothesis test for whether the proportion of men who talk more than text on their cell-phones is…

A: P-value=0.23

Q: Steele Electronics Inc. sells expensive brands of stereo equipment in several shopping malls. The…

A: Answer  Given  Sample size [n] =23 P =33%     =33/100    =0.33

Q: Given that X is a random variable having a Poisson(X) distribution, compute the following: (a) P(X =…

A: We know that, The probability mass function is,  P(X=x) = (e-λ×λx)/x!  Where,  λ &gt; 0  x = 0, 1,…

Q: 3. An art dealer receives a shipment of five old paintings from abroad, and, on the basis of past…

A:

Q: a) Draw a decision tree for this scenario, making your consequence your cash in hand at the end of…

A: a) Here is the decision tree for the given scenario: b) To solve this decision tree using EMV, we…

Q: 1）Find the probability that the selected person is a Secretary, or that his or her age of retirement…

A: 50-55 56-60 61-65 Over 65 Attorney 8 42 80 30 College Professor 10 37 71 40 Secretary 21 45…

Q: 1. A sample of 10-year-old children found that they receive the following weekly allowances: $6, $1,…

A: The data are X: 6, 1, 2, 10, 4, 3, 9