Given that balls are drawn without replacement from a box containing 7 white and 3 black balls. Let X=0 for a white ball and X=1 for a black ball. For samples X₁, X₂, X3 of size 3, find the expected values of the sample mean and the sample variance of the Xi's

Q: 33-41 Use logarithmic differentiation to find the derivative of the function. 33. y = (2x + 1)³(x² −…

A: Since you have asked multiple questions in a single request we would be answering only the first…

Q: Find the product and write the result in standard form. 30 (9 +8 i)(5 - 5i) A) 85 - 5i B) 5 +85 i C)…

A: As per the request of the student both questions have been solved. This question can be solved using…

Q: Prove using the properties of set operations: a. If A and B are sets then [(A - B)c n A] C B

A: The given expression is A-BC∩A⊂B, where A and B are sets.

Q: STEP 4: Decision Rule 28. H p 0.50 H p>0.50 FAIL TO REJECTHO REJECT H ACCЕРТ Н, mean 0.50 standard…

A: For the given data Find

Q: 38) If a population has standard deviation 20 what is the minimum sample size to be 95% confident…

A:

Q: Calculate t. [35 t+ 6 C 10 12 B O 25 O 26 O 30 O 28 O 27 O 29

A:

Q: 48. Find the area of this parallelogram (A = bh). 12 cm 5 cm 16 cm A. 65 cm² B. 60 cm² C. 48 cm² D.…

A:

Q: 49-52 What is wrong with the equation? 3 8 49. f₁²₂x²² dx = X-4 X -3 2 3 50. 0.0 £²₁ / / dx = -²/31…

A: We have to find the mistakes in the given equation.To check this we will evaluate the integral.

Q: x² + 1

A: given an algebraic expression as followsx2+1, we need to factorise it

Q: 35. (²00 + 30 dv 37. f(x) dx where f(x) = 18 · 5² √ √ ²2² ²² dz 36. sin x cos x if 0<x< π/2 if n/2…

A:

Q: At noon, ship A is 100 km west of ship B. Ship A is sailing south at 40 km/h and ship B is sailing…

A: Use pythogorous theorem

Q: 9. Let U = {a,b,c,d,e,f.g) be the universal set and A={a, c, e) and B = {a, c, g) be subsets of U.…

A:

Q: You have 268 feet of fencing to enclose a rectangular region. Find the dimensions of the rectangle…

A: .   It is given that fencing for a rectangular region is restricted to 28 feet .Let the length and…

Q: Question 40 Calculate the arc length of the unshaded region. [40 ] 4 ft Po 80° D. O 54n/9 ft O 19.4…

A:

Q: &56

A:

Q: 1 + sin?x dx 50. 排

A: Note: since you have posted multiple questions. As per our guidelines we are supposed to solve only…

Q: the expression when x = 10, y = -2, and z = -5. 10y -x? + 6z 31. XZ 29. 30. y y

A: Put the value which is given in the  given expression .

Q: QUESTION 33 "A clinican has found a significant effect of a new drug and wants to know the effect…

A:

Q: 37 and 41

A:

Q: Identify the consequent of the statement "There is a bloodshed in Ukraine and the Russian people are…

A:

Q: Integrate the function. dx Jzx (1+x) A sin-1 +C tan-1 C In |x|•C D tan-1 .C

A:

Q: 25. List the sides of AXYZ in order from largest to smallest using an inequality. 26. List the…

A: Side opposite to largest angle is largest one and vise versa

Q: 49 and 55

A: