The discrete random variable X is the number of students that show up for Professor Smith's office hours on Monday afternoons. The table below shows the probability distribution for X. What is the expected value EX) for this distribution? 1 2 3 Total P(X) .40 .30 .20 .10 1.00 Multiple Choice 1.2 1.0 1.5 2.0

Q: Let y be the curve with vector form r(t) = (1/(t+ 2), sin(sin(sin t)), e-"). a) Determine whether…

A: The parametric curve is r(t)=⟨1t+2, sin( sin( sin t)),e-t⟩. x(t)=1t+2, y(t)=sin( sin( sin t)),…

Q: I need to create

A: Peyton Smith, an avid music enthusiast with a diverse collection of CDs, has recently embarked on a…

Q: A retail shop accepts only cash or checks. Suppose that 55 of its customers carry cash, 39s camry…

A:

Q: A homomorphism on an alphabet is a function that gives a string for each symbol in that alphabet -…

A: if you find my answer helpful please put thumbs up. thank you. the required solution is given below…

Q: Consider a cost function C, and the average cost function C(x) A(x) = (a) Compute the derivative of…

A: Given the average cost function, A(x)=C(x)x

Q: 3) In a future class, you will learn about circuits and the famous Kirchoff's voltage low…

A: In this question we have to find out the values of I1 and I2 from the given equations.

Q: Jill wishes to know the salary of an employee in a rival company. What data source will she use to…

A: Since we know that there are two types of data primary data and secondary data which is defined as…

Q: Let z be a complex number satisfying 12|z|2 = 2|z+ 2|² + |z² + 1|2 + 31. What is the value of z + °…

A: Given, 12z2=2z+22+z2+12+31 Now solving the given equation as,…

Q: A history class is comprised of 8 female and 7 male students. If the instructor of the class…

A: Given that Female students =8 Male students=7 Randomly selected students= 8

Q: Let G = (V, E, R, S) be a grammar with V = {Q, R, T}; { = {q, r,ts}; and the set of rules: Q>q| RqT…

A: Image is attached with detailed solution.

Q: To introduce her class to binomial distributions, Mrs. Desai gives a 10-item, multiple- choice quiz.…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: À credit union took a random sample of 40 checking accounts. The sample mean account balance was…

A:

Q: At one university, the mean distance commuted to campus by students is 17.0 miles, with a standard…

A: Solution: Let X be the commute distance. From the given information, X follows normal distribution…

Q: 2 Let m = R[x] be a polynomial with deg m≥ 1. Define a relation Sm on R[x] by the rule that (f,g) €…

A: An equivalence relation is a binary relation on a set that satisfies three properties: reflexivity,…

Q: A person leaves home walking at a steady pace, stops for a short break, then continues at a quicker…

A:

Q: While following a treasure map, you walk 50 m at an angle of 60° north of east, then 50 m at an…

A: We have given we walk 50m at an angle of 60∘ north of east, then 50m at angle of 30∘north of west.…

Q: Determine whether the hypothesis test involves a sampling distribution of means that is a normal…

A: Given that   x̄ = 100  ,  μ = 82  ,   S = 15.1  , n =20

Q: Solve the following. Additionally, comment on the behavior of the solu- tion(s) as t → 00.

A:

Q: Kound to four decimal places as needed.) -1.6 0.05 -1.5 0.06 -1.4 0.08 - 1.3 0.09 -1.2 0.11 -1.1…

A: Given that  X~Normal(μ=100, σ=10) μ=100 , σ=10

Q: The following are the ages of 14 music teachers in a school district. 26, 27, 29, 29, 33, 36, 37,…

A: Given information: The data represents the ages of 14 music teachers in a school district.

Q: Let f = (4 5 6) and g = (1 9 8 4) (2 7 5) (36) be two permutations in S9. (a) Compute fogo f-¹, and…

A:

Q: A researcher is interested in estimating the proportion of voters who favor a tax on Based on a…

A: We have given the following statement about the population proportion.

Q: A) Which of the following triplets are possible lengths of line segments that could form a triangle…

A:

Q: 1. a. Given the information below on two prospective land uses and their associated probabilities…

A: *answer:  *11 a. Based on expected use analysis, the expected market value is: $(300,000x 20% +…

Q: The age composition of the population of a certain country is given in the following table. Replace…

A: The age composition of the population of a certain country is given. The histogram of the given data…

Q: Identify the vertex, focus, axis of symmetry, directrix, direction of opening, min/max value,…

A: we can rewrite the equation we get  y=-(x2-4x+4)y=-(x-2)2(x-2)2=-y

Q: Let language B ={w|wcan be written as c#d#c®#e with c, d, e e {a, b}* }. | Show that B is not…

A: Question a)A language is regular when its length |w|>=c where c is a constant number and it holds…

Q: Application Exercise - Pizza Its dinnertime and you and two of your buddies decide to order a…

A: Here we solve the given problem of calculus.

Q: Find the volume V of the solid obtained by rotating the region bounded by the given curves about the…

A:

Q: Draw a large graph of y = x from x = -1 to x = 2. This exercise focuses on finding the arc length of…

A: Note: It is a multipart question. No specific part has been asked.So, First six parts are solved as…

Q: frequency 8 4 2 1 2 3 4 5 6 Do the data appear to be normally distributed? Explain. O Yes, the…

A: The dice is rolled: So, the outcomes can be 1, 2, 3, 4, 5, 6 So, Die Rolled frequency 1 7 2 5…

Q: Has the average time for a 10-mile race changed? To answer that question, we consider the Cherry…

A: