Mathematics, 22.04.2020 23:42 Ideen
Among smartphone users, 40% use a case but no screen protector, 10% use a screen protector but no case, 45% use both a case and a screen protector, and 5% use neither a case nor a screen protector. Twenty smartphone users are sampled at random. Let X1, X2, X3, X4 be the respective numbers of users in the four given categories.
Find P(X1=7, X2=3, X3=8, X4=2).
Answers: 3
Mathematics, 20.06.2019 18:04
Plz i want answer and i would appreciate it is is a b c or d
Answers: 1
Mathematics, 22.06.2019 00:20
Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6
Answers: 2
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Determine the intercepts of the line that passes through the following points. (15,-3)(15,โ3) (20,-5)(20,โ5) (25,-7)(25,โ7)
Answers: 1
Mathematics, 22.06.2019 03:20
The slope of cd is which segments are perpendicular to cd ? select each correct answer. gf , where g is at (6, 5)and fis at (10, 2) ef, where e is at (4, 1) and f is at (7,5) lm , where lis at (-2, 3) and m is at (-10, 9) jk , where jis at (1, -2) and k is at (10, โ 14) next
Answers: 3
Among smartphone users, 40% use a case but no screen protector, 10% use a screen protector but no ca...
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