In a recent poll, 35% of survey respondents said that, if they only had one child, they would prefer the child to be a boy. Suppose you conducted a survey of 190 randomly selected students on your campus and find that 76 of them would prefer a boy. (a) Use the normal approximation to the binornial to approximate the probability that, in a random sample of 190 students, at least 76 would prefer a boy, assuming the true percentage is 35%. (b) Does this result contradict the poll? Explain. (a) The probability that at least 76 students would prefer a boy is (Round to four decimal places as needed.)

Q: Rita does a weekly exercise program consisting of cardiovascular work and weight training. Each…

A: Topic = Algebra

Q: 13.5

A: The objective of this question is to find the product of two given matrices. Matrix multiplication…

Q: 4. 5. 6. 7. 8x - 3y (-)-4x + 8y 6rs-7bc (-) 9rs-7bc 5xy - 9cs (-)-3xy + cs x² - 6x + 5 (-) 3x²-2x-2

A: Given :4. 8x-3y--4x+8y5.6rs-7bc-9rs-7bc6.5xy-9cs--3xy+cs7. x2-6x+5-3x2-2x-2

Q: 3. {(-1, 1, 2), (2, –3, 1), (10, –14, 0)}

A:

Q: Kevin does a weekly exercise program consisting of cardiovascular work and weight training. Each…

A:

Q: Goran does a weekly exercise program consisting of cardiovascular work and weight training. Each…

A: Solution:

Q: 5 5 2 -3 1 3 В C 4 -4 0 -1 -5 0 1 1 -4 1 1 CA =

A: Given,

Q: 8 23. 60/3 – 3 -

A: Given: 603-83 for simplify it we take L.C.M. and solve it

Q: 13. 4 0 1 1 -201 A = -2 0,λ= 1, 2, 3

A:

Q: s/25 - s? ds s/ 25 - s ds

A:

Q: 23.20 - 8.12

A: Given 23.20-8.12

Q: an +1 =an +an- 1; a, =2, a0 = 9

A:

Q: Plot the scatter plot defined by the points on the left. Then match it to the correct correlation…

A: 2,8,4,7,5,6,6,5,8,4 r=-0.83 1,1,3,3,5,5,7,7,9,9 r=-0.04 2,8,4,8,5,4,6,6,8,3 r=0.47…

Q: 20-29 30-39 40-49 50-59 60-69 70-79 80-89

A: Given data is appropriate for measures of central tendency to find the frequency distribution. A…

Q: selected at random from a production line and w They had an avers 21 45 gr weight of F-

A: Sample size n =28 Sample mean=21.45 Standard deviation =0.31

Q: 4 4. -1 -2 -3 2 2 3 3 4 1 1 -1 7 -2 1 1 1 (1 7 2 6. 1 1 0 1 5 0 5.

A:

Q: 5 9 4 2 8. - 2 + 1 + 4 + 3 - 3 3 8 9 1 + 6 - 7 - 5 + 9 + 9 6 5 + 6 - 7 - 0 + 8 3 + 8 = 9 - 6 = 3 + 3…

A:

Q: ) Suppose a virus spreads so that the number N of people infected - with time t. The table below…

A: In this question, the concept of the exponential function is applied. Exponential Function Exponents…

Q: to.025.15 i

A: Given that  t0.025,15 = a