The grades on a chemistry midterm are roughly symmetric with p = 67 and o = 2.0. If William scored 66 on the exam then the z score will be?. O a. .5 O b. -.5 O c. -.75 O d. .75

Q: Jenny picked a large basket of apples. She gave 1/4 to Jerome and then gave 1/3 of the remaining…

A: here we are using trail and error method to find the solution if we consider option A  if jenny…

Q: Find the values of x and y in a*b xaby = a¹²³³ A x=-20 and y=34 B x= 20 and y= 45 C x= 12 and y= 32…

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Q: f the values of the variable X are 2, 3, 4, 5 and P(x=x) 0.20, 0.30 ,0.20, 0.30, respectively, which…

A: Given data, X P(X=x) 2 0.20 3 0.30 4 0.20 5 0.30   E(X)=?

Q: 2. Which of the following expressions is 2y 3x, equivalent to X y 2y² -3x2 А. ху 3у²-2х2 B. xy 2х²…

A:

Q: There are 80 sixth graders at Wilson Middle School. Only 70% of the sixth graders will attend the…

A: From the provided information, Sample size (n) = 80 Sample proportion (p̂) = 0.70

Q: 12. Jackson has scores of 80, 90, 83, and 81 on four Math quizzes. What is the score he needs on the…

A: Let us assume that the next score is x then

Q: (+0.15) (-0.125)

A:

Q: 40. What is the value of EX? for the scores: -2, -1, 0, 1, 2?

A: Given that  The data -2,-1,0,1,2 Find the value of ∑X2

Q: Find S, if aj = 20, d = -10, and n = 25.

A: first term a1 = 10 common difference d = -10 total number of terms n = 25

Q: Given M1 = −5, s1 = 4.6, n1 = 72, M2 = − 1, s2 = 3.3, and n2 = 60, calculate t.

A:

Q: What is the P(- 0.34 Z - 0.97) a.-0.2009 b. -0.0526 c.0.2009 d.0.0526

A: P(- 0.34 <Z <- 0.97)=?

Q: Match these values of r with the accompanying scatterplots: 0.758, 1, - 0.996, - 0.758, and 0.996. W…

A: The correlation coefficient is the measure to tell how strong is the relationship between two…

Q: There is a formula that gives a correspondence between women's shoe sizes in the United States and…

A: We will find the required.

Q: During their freshman year, Derek's GPA was 3.5 and Terry's was 3.1. During their sophomore year,…

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Q: Que. 5 If *c =2"c., then the value of n is: 2°

A:

Q: Given A = and B = Determine (|A|B) • (A). (Round your answers to 4 decimal places.)

A:

Q: W Click the icon to view the scatterplots. ..... Match the values of r to the scatterplots.…

A: Given correlation  -1,-0.78,0.997,-0.457,1

Q: Given A = and B = Determine (|A|B) • (A). (Round your answers to 4 decimal places.)

A:

Q: If a b=2a- 3b+1, what is 3 (-1)? a. 4 b. 10 C. 8 d.-1 b

A: Compare 3*(-1) with a*b, a = 3, b = -1.

Q: If 8n=8nine , which of the following is a possible value for n? Choose the best answer below. Show…

A: ten

Q: The value of edz is O a.- O b. e-1 O d. e+1 O e. None

A:

Q: 41. What is the value of EX + 1 for the scores: -1, 0, 2, 3?

A: Given data is -1,0,2,3

Q: If ZDEG = ZFEG, DG = 4s, and FG = s + 33, what is FG? G F E FG =

A: Solution: The objective is to find the value of FG

Q: Susan scored 82%, 75%, 77%, and 85% on the first four tests. What must she score on the fifth test…

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Q: Suppose a various jointly as b and c, when a = 14, b = and c = What is the value of a when b = and…

A: Given,  a varies jointly as b and c When a = 14,  b=23  and c = 16  We have to find the value of a…

Q: x2-4 dx%3D -3 Select one: a. 23 3 b. 28 3 C. 23

A: The only zero of x2-4 in the integration domain is x=-2.

Q: If a=4 and b=-6, then la²+b/al=? A. -8 OB. -2 O C. 20 OD. 14.5 OE. -14.5

A: Topic - Algebraic operations we are given a=4 and b=-6 we need to find a2+b/a

Q: Given P(A) = 0.36, P(B) = 0.40 and P(A B) = 0.17. Find P(AUB).

A:

Q: Which of the following would result in the same value as -20 + - 4? Select all that apply. A. 20 4…

A: To find  Which of the given values would result in the same value as -20/-4

Q: Given P(A) = 0.42, P(B) = 0.21, and P(B|A) = 0.27, what is P(A and B)?

A: Given that Given P(A) = 0.42, P(B) = 0.21, and P(B|A) = 0.27, Then  P(A and B)

Q: Of the 800 students at Harrison Middle School, 38% made the honor roll last semester. How many…

A: We have to find no. Of success from given information.

Q: Match these values of r with the accompanying scatterplots: - 1, - 0.993, – 0.383, – 0.741, and 1. W…

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Q: 21 then find the value of (- A2 + 6 A)? 4 If A 3 -2 1. -2 [2 07 0 2 [2 4. elect the correct…

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Q: Choose the expressions that are equivalent to the expression y 35 y y y y y y y y y y y y

A:

Q: Scores: 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 4, 4, 6, 9 a. ∑X = b. (∑X)2 = c. ∑X2 =​ d. Ʃ(X+3) =

A: Given scores is0,0,0,1,1,1,1,2,2,3,3,4,4,6,9Let x denotes the given…

Q: Use the following table to answer the question: X 1 2 3 4 P(X) 0.5 0.3 0.15 0.05       a. 0.5…

A:

Q: Mark’s age twenty years ago if she will be N years old at 10 years from now? a. 20 - N b. 30 - N c.…

A: We want to find Mark's age twenty year ago.

Q: 3. Given A = {2, 3, 5}, and B = {1, 2,3, 4, 5}, which of the following is a correct statement? a. A…

A: