lass. For a 4-period class, students should spend an average of 12 hours studying for the on students, and the distribution of total study hours per week is bell-shaped with a mean of 13 hours and a standard deviation of 3 hours. Use the Empirical Rule to answer the following questions. 99.7% of the students have study hours that are between and

Q: (b) While blindfolded, you choose a bowl at random and then pick a jelly bean from that bowl at…

A: From the given information, Jelly beans are packaged in one-pound bags. There are 4 colored jelly…

Q: If AUC-BUC, then ( A A-C-B-C BC-A-C-B C ANB-ANC D A-B

A: Formula :  (A U B) = A + B - (A ∩ B)

Q: Problem 3 i.e. Let W, be a negative-binomial variable with parameter p € (0,1), -{C-1) P²α-p P{W, =…

A: We have Wr negative binomial random variable with parameter r and p and PMF given by…

Q: Option C: Cash4Life, Lucky4Life or similar (groups of 2): 1. Find the expected value without the…

A: 1 & 2:

Q: A pair of dice is rolled. What is the probability of getting a sum of 12? What is the probability of…

A: From the provided information, A pair of dice is rolled. Total outcomes = 6 × 6 = 36

Q: Texas Instruments produces computer chips in production runs of 1 million at a time. It has found…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: a. A city will change the water supply if the contaminant levels in drinking water are higher than…

A: It is given that the statements about to the hypothesis testing. Here, need to find out the null…

Q: For independent events A and B, P(A) = 0.628 and P(B) = 0.886. What is P(B | A)? Round your answer…

A: P(B|A) = P(B∩A)/P(A)  For independent events :  P(B∩A) = P(B)*P(A)

Q: A teacher has found that the probability that a student studies for a test is 0.75, and the…

A: Givenprobability that a student studies for a test =0.76Probability that a student gets a good grade…

Q: The probability that a fisherman catches a tuna in any one excursion is 0.19. What is the…

A: given data  P(catch tuna) = p = 0.19 he catches four extrusions

Q: A coin is tossed 7 times. Find the probability that none are tails. The probability that none are…

A: Given information- We have given a problem of the binomial distribution. Probability of getting a…

Q: I can't see the answer for b

A: From the given diagram:

Q: A disc jockey​ (DJ) has 11 songs to play. Six are slow​ songs, and 5 are fast songs. Each song is to…

A: Given There are 11 songs to play

Q: Problem 1. In a weekday, Jeremy will eat panda express 35% of the time, drink Starbucks 40% of the…

A: GIVEN DATA  event A: eat panda B: drink starbucks P(A) = 0.35 P(B) = 0.40 P(A|B') = 0.5 P(A∩B) = ?

Q: The PDF of a random variable is if z 3 -{ f(x) = 0, A (5+z)² >

A: The pdf of ξ is, fx=0, if x<3A5+x2, x≥3 a. Value of A is obtained below:…

Q: vision game show has 9 ​doors, of which the contestant must pick 3. Behind 2 of the doors are…

A: behind 2 doors the  expensive cars  behind 7 doors the consolation prizes total 9 doors   select 3…

Q: Assume that x is a binomial random variable with n = 80 and p = 0.5. Use a normal approximation to…

A: It is given that  n = 80 p = 0.5 q = 1 - p = 1 - 0.5 = 0.5

Q: Compute the probability of tossing a six-sided die (with sides numbered 1through 6) and getting a 5

A: if a die is rolled than the possible outcomes are s={1,2,3,4,5,6}

Q: following probability density function: ((0+1)xº, if 0 < x < 1 elsewhere f(x; 0) = = {0 + 0, Find…

A: It is given that the probability density function of X is f(x; θ) = { (θ + 1)•xθ,  if 0 &lt; x &lt;…

Q: 3. In how many ways can you pick a 4 digit banking password if: (a) Repetition is not allowed (b)…

A: The number of digits in a password is 4.

Q: i) Show that the standard score of the sample mean X, is equal to Y.

A: It is given that  X follows N(θ, 1), then E(X) = θ and V(X) = 1,

Q: (2) Compute EW, .

A:

Q: In a survey of 800 parents in UAE, 622 said that moral education has a positive effect on attitude…

A: Given,sample size(n)=800no.of parents who said moral education hasa positive effect on…

Q: the probability of exactly k successes in n repeated Bernoulli trials where the probability of…

A: binomial distribution,n=6k=4p=0.6q=1-p=1-0.6=0.4we have to find out the given probabilty by using…

Q: For the two events E, F, let P(F) = 0.240, P(E I F') = 0.303, and P(E I F) = 0.375. Find:   Find:…

A: It is given that  P( F ) = 0.240,   P( F’ ) = 1 - P( F ) = 0.760 P( E/F’ ) = 0.303 P( E/F ) = 0.375

Q: fix) Determine the probability density function of X. What proportion of reactions is complete…

A:

Q: To evaluate the effectiveness review sessions, a professor gave a pre-test before the review, and a…

A: 1. Suppose μd̄ is the difference of the population mean of post-test (x2) and pre-test (x1) scores.

Q: I have 3 events, A with probability of happening is 2/11, B happening is 5/11, C happening is 4/11…

A: given data P(A) = 211P(B) = 511P(C) = 411   P(A') = 1  - P(A) =1-211 =  911P(B') = 1 - P(B) = 1 -…

Q: A blood test indicates the presence of a particular disease 96% of the time when the disease is…

A: given data,event A=person has disease event B =test indicated person has disease P(B|A) = 0.96…

Q: How do I convert this to a fraction

A: Given that We have to convert the probability into fraction

Q: A study determined that 18% of a population use a certain brand of laundry detergent. What is the…

A: given data  P9use certain brand of detergent) = p = 0.18 sample size(n) = 10x = no. of people use…

Q: Suppose you have an urn containing 6 red and 4 blue balls. You draw 3 balls at random. On each draw,…

A: We have given that  An urn contain 6 red and 4 blue balls  And we have draw 3 balls at random

Q: Let X₁, X2, X3,..., Xn denote a random sample of size n from the population distributed with the…

A:

Q: 4 (a) At a certain charity fundraiser, some guests will be randomly selected to receive a gift. The…

A:

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 121…

A: a. Consider that a random variable X, defines the systolic blood pressure of adults.

Q: A tile is selected from seven tiles, each tile labeled with a different letter from the first seven…

A: Seven tiles :  First seven letters of the alphabet :  {A,B,C,D,E,F,G}

Q: Let X₁, X2, X3, Xn denote a random sample of size n from the population distributed with the…

A:

Q: sample of 36 main dishes in famous restaurants has been randomly selected and the number of calories…

A:

Q: Suppose that 11% of a certain batch of calculators have a defective case, and that 12% have…

A: P(Case defective)=11%, P(Battery defective)=12%  P(both defective)=5%

Q: A box contains ten cards labeled Q, R, S, T, U, V, W, X, Y, and Z. One card will be randomly chosen.…

A: given data S:{Q,R,S,T,U,V,W,X,Y,Z}select onecard at random P(letter U to Z) = ?

Q: Find the CDF of the distance of two randomly chosen points of the [0,6] interval. F(x) - if x6.

A: Given x~U(0,6)

Q: A prospective study with a 2-year (24-month) follow-up was conducted. Results are shown in the table…

A: Given the survival data for 20 participants of hypothetical prospective study with a 2-year…

Q: An experiment is conducted for which the sample space is S = = ($1,S2,S3,S4,S5). Is the following…

A: The probability assignment is possible when All the probabilities are between 0 and 1 The sum of…

Q: even prizes are to be given to seven different people in a group of nineteen. In how many ways can a…

A: given data ,even prizes are to be given to seven different people in a group of nineteen.we have to…

Q: test was given to a group of students. The grades and gender are summarized below   A B C Total…

A:

Q: If P(A) = P(B) = P(C) = 1,P(An B) = 0 and P(An C) = P(BNC) = 1, then what's the probability that at…

A: Given that,  P(A) =P(B) =P(C) =1/4 P(A.B) =0, P(A.C) =P(B.C) =1/16 We have to find that at least one…

Q: H.W3: A fair dice is thrown; find the amount of information gained if you are told that no. 4 will…

A: Given problem Given that   A fair dice is thrown.  We have to find the amount of information…

Q: Compute the probability of tossing a six-sided die and getting an even number.

A: When we toss a six-sided die then the possible outcomes are S = { 1,2,3,4,5,6}  = n(S) = 6 Formula…

Q: Let D = {16,19,21), E = {16,18,19,20) and F = {15,17,18,19,21). List the elements in the set (DUE)…

A: GivenD={16,19,21}E={16,18,19,20}F={15,17,18,19,21}

Q: a) Let 3,1,3,0, 3, 2, 2, 0, 1, 2 be ten independent observations from a binomial experiment of four…

A: X~Bin(n=4,β)  Sample size=10 Given  β^=0.35