The probability of a man hitting a target is If he fires 7 times what is the probability of his hitting the target at least twice? How many times must he fire so that the probability of his hitting the target at least 2 (i) (ii) once is greater than –. 3

Q: In a survey of 52 students in the cafeteria, it was found that 15 were commuters. If one-quarter of ...

A: Let there were x females and y males. So, x+y=52   Given that one-quarter of the female students and...

Q: Let A and B be two mutually exclusive events. Given that (A)=0.25 and ?(A∪B) =0.77, determine ?(B).

A: Given that: P(A)=0.25 and P(A∪B) =0.77 Given that A and B be two mutually exclusive events. This mea...

Q: The entering student for law school class averaged 675 on the LAST with standard deviation of 48 . T...

A:  Let, X=the scores Given that X follows a normal distribution with mean=675 and standard deviation= ...

Q: The probability distribution of a discrete random variable X is given: -2 -1 2/8 | 2/8 | 1/8 2/8 Cal...

A: We first calculate Var(X)  

Q: 4)Incomes for production line workers in a certain city average $43.74 per hour with a standard devi...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: how many ways can I sit 7 people around a circular table where seating are considered the same when ...

A:

Q: 1. The weight of packages that are sent by a certain parcel delivery service has a normal distributi...

A: Since you have submitted two questions, we'll answer the first question. For the second question ple...

Q: The lifespan of a laptop battery normally distributedIf the mean lifespan of a battery 4 years with ...

A:  Let, X= The lifespan of a laptop battery  Given that X follows a normal distribution with mean=4 an...

Q: A brand of jeans comes in nine different washes, five different fit styles, and three different heig...

A: Given that there are: 9 different washes, 5 different fit styles, 3 different height options.   2 of...

Q: Which of following generates more expected revenue ? Select the correct response : price is 700 and ...

A:

Q: Solving with Solutions and Explanation about Exercise on Nonlinear Programming and Probability

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: 1. Three cards are Selected from a pack of 52 cards. Find the probability that i. 3 are spades ii. 2...

A:

Q: The capacitance of capacitors produced by a machine is approximately normally distributed with a mea...

A: The mean of the capacitance of capacitors is 1000 μF. The standard deviation of the capacitance of c...

Q: Direction: Identify the correct answer of the following questions. 1. When choosing an "Ace" and a "...

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

Q: You Cal A. Determine if the following situations use random or nonrandom sampling The identify what ...

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

Q: In a college graduating class 100 students, 60 studied mathematics, 54 studies history, and 30 studi...

A:

Q: Because of the immediate suspension of classes nationwide due to the COVID-19 pandemic, many schools...

A:  Let, X= The scores on a certain exam Given that X follows a normal distribution with mean=65 and st...

Q: 36 What is the probability of not spinning a(n) 3. Answer in decimal form and round to the nearest h...

A: The angle for 3 is 30 degrees. So the angle for not 3 is= (360 - 30) = 330 degrees. The total angle ...

Q: A coin is tossed four times, Find: L. The probability of getting maximum one head. O1/16 ONone of th...

A: i) If the coin is tossed 4 times then we can get : 0 head for the outcome: TTTT 1 head for the outco...

Q: Consider the following experiment of rolling both one six sided red die and one six sided blue die a...

A: Each die has 6 sides. So total number of possible outcomes= 62 = 36   We can get sum=7 for the outco...

Q: Q14:- Two cards are drawn at random from a deck. Find the probability that both are aces.?

A: We know that there are 4 aces in a standard deck of 52 cards. We can draw any 2 cards in 52C2=1326 w...

Q: An urn contains 10 marbles:            4 RED, 3 BLUE, 2 WHITE, and 1 GREEN We will make 5 draws from...

A: NOTE : As per our company guidelines, we are supposed to answer only the first 3 parts. Kindly repos...

Q: There are 5 questions on a multiple choice exam, each with five possible answers. If a student guess...

A: One question has 5 options and only one is correct.

Q: Using RK method of order 2 (Huen’s Method ) find dy/dt=yt3−1.5yFrom t= 0.2 t0 0.6 where y( 0.2)=1 wi...

A: Given Using RK method of order 2 (Huen’s Method ) dy/dt=yt3−1.5y From t= 0.2 t0 0.6 where y( 0.2)=1 ...

Q: The mean number of defective units in a large assembly line is 4.3 units per day . Find the probabil...

A: It is given that, The mean number of defective units in a large assembly line is 4.3 units per day. ...

Q: Bayes' theorem or rule 1.56. A box contains 3 blue and 2 red marbles while another box contains 2 bl...

A: Let us denote  B=blue and R=red X=first box, Y=second box Given that the first box has 3 blue and 2 ...

Q: aaing 1 14) Ajar contains four red marbles, two white marbles, and three blue marbles. Without looki...

A: There are total (4+2+3)=9 marbles in the jar. Among them 3 are blue. So, n(blue)=3 n(all)=9  

Q: In a 25-Question multiple-choice, there are five possible answers of which one is correct. Let X: nu...

A: X=number of correct answers  n=number of trials=25 p=probability of success= 1/5 =0.2 [because each ...

Q: QUESTION 1 A certain machine makes electrical resistors having a mean resistance of 50 ohms and a st...

A:  Let, X=resistance Given that X follows a normal distribution with mean=50 and standard deviation=4 ...

Q: 1.5 Let Y, and Y2 have the joint probability density function given by 0 < y1 < y2 S1 elsewhere 0, 1...

A:

Q: is a probability - Find k such that f(x) = {kx(1 – x)² for 0 <x<1 %3D otherwise density function for...

A: The total probability must be 1. So,      

Q: a) The joint density function of two continuous random variables X and Y is [cxy 0<x<4,1<y<5 f(x, y)...

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Q: (a) (i)A survey found that one out of five Americans say he or she has visited a doctor in any given...

A: We need to answer both parts of question a and b using concept of probability distributions.

Q: 24) Abag contains five pink jellybeans and two green jellybeans. If one jelybean is chosen at random...

A: There are total (5+2)=7 jellybeans. n(all)=7 n(green)=2      

Q: The amount of time in hours that a computer functions before breaking down is a continuous random va...

A: We first find λ using  Calculation:    

Q: 2. Which of the following values cannot be a correlation coefficient? Group of answer choices -.274...

A: We know that the correlation coefficient is always between -1 and 1. Among the given options, only 1...

Q: fs new every an insurance On average,one in clients appoached by Salesman purchases an insurance Sup...

A: Let X=the number of clients who purchased an insurance policy n=number of trials= 5 p=probability of...

Q: A certain machine makes electrical resistors having a mean resistance of 50 ohms and a standard devi...

A: Let, X= resistance Given that X follows a normal distribution with mean=50 and standard deviation=4 ...

Q: Let a random variable X has an exponential distribution with a mean of 10. (a) Compute P(-10-10 or X...

A: The mean of the exponential distribution is 10.

Q: Var(aX + b) = a²Var(X)

A:  

Q: Please refer to the picture.

A: For binomial experiment 1) All trials are identical,  2) Each trial has only 2 possible outcomes: Su...

Q: ONLY Q10

A: Given that 20 are blemished out of 600. So the probability of blemished is= 20/600= 1/30

Q: If X: N(132,100) find P(122<X<142)

A: Given : X follows a Normal distribution  with Mean  = 132 Variance  = 100 Standard deviation  = √ Va...

Q: A salesman finds he can make one sale for every four calls he makes. If he makes five sales calls, w...

A: Let, X=the number of sales he makes n=number of trials= 5 p=probability of success= 1/4=0.25 X follo...

Q: In a popular online role playing game, players can create detailed designs for their character's "co...

A: Given that: 341 visitors purchased no costume. 117 visitors purchased exactly one costume. 8 visito...

Q: True or False. Tell whether the following statement is true or false.   When you toss a coin once ...

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

Q: Rolling a Die If a die is rolled one time, find these probabilities. A. Of getting a 4 B. Of getting...

A: As per the Bartleby guideline if more than three subparts are asked only first three to be answered ...

Q: Consider the experiment of tossing an unfair coin, where the probability of heads is and the probabi...

A: In question, Given that an experiment of tossing an unfair coin with probability of head is 7/10 and...

Q: 1. The Saints softball team has 3 different colored jerseys (black, orange, and white), three differ...

A: Given: The softball team has 3 different color jersey, 3 different color pant and 2 different color...

Q: Example 4. Let A = {1, 2, 3, 4, 5} and B = {3, 4, 5, 6, 7, 8} be subsets of the universal set U = {1...

A: As per guidelines expert have to answer first three subparts only dear student please upload other s...

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.