0. Two fair dice are thrown. Find the probability that the sum is greater than 7. 5/12 7/18 5/11 4/9

Q: For a fixed x (0<x< 1), suppose Y has a probability mass function [x-¹(1-x); y = 1,2,3,... f(y|x) =…

A: Solution

Q: In a box containing 8 red balls, 8 green balls and 8 blue balls where 3 balls will be drawn in…

A:

Q: 5- If X and Y are random variables having the joint density function f(x,y) = = (6 - x - y), 0 < x <…

A:

Q: Suppose a jar contains 15 red marbles and 26 blue marbles. If you reach in the jar and pull out 2…

A: To find: The probability that both are red marbles.

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A: The hypothesized proportion is 0.80.

Q: A package contains ten yellow, six green, eight purple, and nine red candies mixed together. What is…

A: here given A package contains ten yellow, six green, eight purple, and nine red candies mixed…

Q: The following is a collection of grades of students in Survey Sampling. You want to estimate the…

A: Data   76   74   73   72   88   82   69   88   87   78   91   72   73…

Q: How many arrangements are there of three the letters in the word APRIL ? a) 15 acer b) 125 c) 27 d)…

A: To find: How many arrangements are there of three the letters in the word " APRIL".

Q: A bowl contains twelve batteries of which four are new, five are used (working) and three are…

A:

Q: 6- The variance of the sum of the random variables equals the sum of the variances if the random…

A: HERE ,  take two random variable x  and y  here given two variable X and Y are uncorrelated

Q: 34. A college offers tutoring in Math, English, and Chemistry. The number of students enrolled in…

A:

Q: A coin weighted so that P ( H) =3/4 and P( T ) = 1/4 is tossed three times . Let X be the random…

A: Let X be the random variable which denotes the longest string of heads which occurs .  First…

Q: The probability distribution for the random variable,x, is x: 2, 2.5,3.0,3.5,4.0,4.5 and…

A: X 2 2.5 3 3.5 4 4.5 Total P(X) 0.07 0.36 0.21 0.19 0.10 0.07 1

Q: Question 2 x 1 | | | | (a) PX = 2) (b) PX > −2) (c) P(−1 < X <1) (d) PX < -1 or _X = 2) 2

A: Given data is x -2 -1 0 1 2 f(x) 1/8 2/8 2/8 2/8 1/8

Q: Hom variable X has the gamma p. d. f with integer j rary ß>0, then E(Xk) is

A:

Q: I want it through probability and random variables with maximum speed Q2: A- Find the probability…

A: Given : Probability,p = 0.5 number of trial,n = 3

Q: If I inform you that you have a 90% chance of passing this IE 223 course if you get an 85 or higher…

A: As Prof. N. G. Das said "Let A and B be two events with P(A) &gt; 0. Then the conditional…

Q: andom variable has probability stribution: x= 0,1, 2 ,3 ,4, 5,6,7 and P…

A: We know that the  By total probability law, sum of all the probabilities of a random variable is…

Q: An unprepared student takes a 10 question TRUE/FALSE quiz and ended up guessing on all the problems.…

A: n = 10 questions true false questions  so p(correct guess) = p = 1/2 x = no. of correct answer by…

Q: Q1/ Grades in statistics class are weighted as follows: Tests are worth 50% of grade, homework is…

A:

Q: If y is a random variable with a mass function, its probability is defined as: y 0 1 4 9 P(y) 0.64…

A: Solution-: We have following table: y 0 1 4 9 P(y) 0.64 0.25 0.09 0.02 We want to find, (a)…

Q: A milk display case at a grocery store is stocked with cartons of regular milk and soy milk, in both…

A:

Q: 3) u) What do this know about bootstrap ?b) when do we use an example you method (explain…

A: a)  Bootstrapping is a statistical procedure that resamples a single dataset to produce…

Q: a. What is the probability that all the three grade 11 students are included? b. What is the…

A: here in given problem no need of graph or curve  here given in group of 10 students , there are 3…

Q: In a sample of 5 courses with no support course the average final of 200 students was 70% with a…

A: As per our guidelines we are suppose to answer only one question. Given,sample size(n)=200sample…

Q: 1- The total number of positive integers that can be formed from the digits 1,2,3 and 4 if no digit…

A: here  available digits are 1,2,3,4  positive Integer formed from given digit without repetition

Q: A laundry shop averages 5 customers per hour. Assume that the number of customers is a Poisson…

A:

Q: the number of combinations of 10 distinct objects taken six at a time = the number of combinations…

A: here use given statement and concept of combination

Q: upvote.

A: Total number of students in the group = 10 Number of grade 11 students in the group = 3 Probability…

Q: 6 cards are drawn at random from a standard deck. Find the probability that all the cards are…

A: Given data: Total card in standard deck of card = 52

Q: Q4/ The average on a statistics test was 78 with a standard deviation of 8. If the test scores are…

A:

Q: A. What is the probability that the chosen driver is wearing seatbelt and driving not under…

A: Suppose a study of driving under influence and driving without seatbelt produced the following data:…

Q: Q2: A- Find the probability distribution of the random variable y, which represents the number of…

A: Tossing a balanced coin Getting a Head 0.5 Getting a Tail 0.5   E(x) = ∑xp(x)Var(x) =…

Q: The probability that a component is acceptable is 0.93. Ten components are picked at random. What is…

A: Given The probability that a component is acceptable(p)=0.93sample size(n)=10Let "x" be the no.of…

Q: 8- Mean, variance and third central moment of Poisson distribution are equal. O True False

A:

Q: 4. In one of the biggest schools in Metro Manila, 80% of their high school students are known to…

A: Given Information: 80% of the high school students are known to have come from their elementary…

Q: you have a biased coin that has a probability of 0.6 of coming up heads. Toss this coin 20 times.…

A: The coin is biased Getting a head is a success = 0.6 Getting a tail is a failure = 0.4 Outcomes of…

Q: e Determine the standard deviation of X f. Determine the standard deviation of Y 9. Determine the…

A:

Q: Calculate the means and standard deviations of:37, 26, 19, 21, 19, 25, 17 6.9 ;3 .a O 2.414 :3 .b…

A: Mean is the measure of central tendency. It is the most used measure and it greatly affected by th…

Q: If E denotes the expectation the variance of a random variable X is denoted as (E(X))^2 - E(X) True…

A: We will check above statement is true or false by using variance in expectation form

Q: 3. [Maximum mark: 5] The times taken for a group of runners to complete a half-marathon are found to…

A:

Q: 1. What is the probability of getting the number 5 when a fair die is thrown? A. 0 B. 1/6 C. 1/2 D.…

A:

Q: in how many ways can a hand of 5 cards be dealt such that 2 are black and 3 red cards?

A: here given ,  there are 52 cards in deck  there are 26 red and 26 black cards in decks

Q: Find the entropy of the source producing the following messages: Px1 = 0.25, Px2 = 0.1, Px3 = 0.15,…

A:

Q: Is the given statement true or false? nC₁= "Cn-r O a. False b. True O

A: Given: nCr = nCn-r

Q: What is the expected outcome in a fair game?

A: here use basic of expected value  expected value  = ∑xp(x)

Q: Suppose a study of driving under influence and driving without seatbelt produced the following data:…

A:

Q: questions, each An examination consists of multiple-choice having five possible answers. Suppose you…

A: Let A= Give the answer B= knew the answer

Q: In how many ways can we select 6 people out of 12, ?of which a particular person is not included…

A: According to the given information, we have Total number of persons = 12

Q: Q5//Four technicians regularly make repairs when breakdowns occur on an automated production line.…

A: Given: Four technicians regularly make repairs when breakdowns occur on automated production line.…