Mathematics
Mathematics, 30.10.2021 22:00, liddopiink1

Có 2 chuồng gà: chuồng I có 8 con mái, 4 con trống, chuồng II có 9 con mái, 3 con trống. a. Bắt ngẫu nhiên 3 con từ chuồng I. Hỏi trung bình có bao nhiêu con gà mái được bắt ra?
b. Bắt ngẫu nhiên 3 con từ chuồng II. Hỏi trung bình có bao nhiêu con gà mái được bắt ra?
c. Bắt ngẫu nhiên 3 con từ mỗi chuồng. Hỏi trung bình có bao nhiêu con gà mái được bắt ra?

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 20.06.2019 18:04, sabrinachambers444
2x+3y=12 x-y=6 solve the following system equations
Answers: 1
image
Mathematics, 21.06.2019 15:00, Kassi07
(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )
Answers: 1
image
Mathematics, 21.06.2019 19:00, kaylaamberd
What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)
Answers: 2
image
Mathematics, 21.06.2019 21:00, vliu470
Even if a person is in very good shape, applying to be a police officer requires commitment to fitness. applicants must pass a physical fitness test. in order to prepare for the test, janet purchases an activity tracker to court her steps. her goal is to walk 10,000 steps each day. she measures heard average step length to be 30 inches. play janet runs, her average steps length increases to 36 in. how many steps would she have to take to run 1 mile 50280 round to the nearest step
Answers: 3
Do you know the correct answer?
Có 2 chuồng gà: chuồng I có 8 con mái, 4 con trống, chuồng II có 9 con mái, 3 con trống. a. Bắt ng...

Questions in other subjects:

Konu
English, 12.04.2021 20:40
Konu
Mathematics, 12.04.2021 20:40
Konu
Mathematics, 12.04.2021 20:40