Cho thí nghiệm ngẫu nhiên có không gian mẫu và bảng phân phối xác suất X 0 1 2 3 4 5
P 0,1 0,2 0,1 0,4 0,1 0,1
Hãy tính xác suất:
a. A = {0,3,5}.
b. B = “Số lẻ”.
c. C = “Số lớn hơn 2”.
d. D = “Số lớn hơn 6”.
e. Tìm ModX, EX, V arX.
f. Tính P(−1 < X < 3); P(|X − EX| < 2,5); P(|X − EX| > 3,1).

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

What is the equation, in point-slope form, of the line that has a slope of 6 and passes through the point (–1, –8)? a. y+8 = 6 (x+1 )

Consider the following geometry problems in 3-space enter t or f depending on whether the statement is true or false. (you must enter t or f -- true and false will not work.) f equation editorequation editor 1. a plane and a line either intersect or are parallel t equation editorequation editor 2. two planes parallel to a third plane are parallel f equation editorequation editor 3. two lines either intersect or are parallel f equation editorequation editor 4. two planes orthogonal to a third plane are parallel f equation editorequation editor 5. two planes orthogonal to a line are parallel f equation editorequation editor 6. two planes either intersect or are parallel f equation editorequation editor 7. two lines orthogonal to a third line are parallel t equation editorequation editor 8. two lines parallel to a third line are parallel t equation editorequation editor 9. two planes parallel to a line are parallel f equation editorequation editor 10. two lines parallel to a plane are parallel f equation editorequation editor 11. two lines orthogonal to a plane are parallel