Each of 12 refrigerators of a certain type have been returned to a distributor because of the presence of a high pitched oscillating noise when the fridge is running. suppose that 5 of these 12 have defective compressors and the other 7 have less serious problems. if they are examined in a random order, let x= the number among the first 6 examined that have a defective compressor. compute the following

a) p(x=5)

b) the probability that x exceeds its mean by more than 1 standard deviation

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

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r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation:

c.)

step-by-step explanation: