Prob-3 A company makes electric motors. The probability an electric motor is defective is 5% . What is the probability that a sample of 100 electric motors will contain no defective motor

7.88 * 10^-31

Step-by-step explanation:

Given that :

Probability of being defective p = 0.5

probability that a sample of 100 electric motors will contain no defective motor

n = 100

P(x = 0)

Using the binomial probability function :

P(x = x) = nCx * p^x * (1 - p)^(n-x)

P(x = 0) = 100C0 * 0.5^0 * (1 - 0.5)^(100-0)

P(x = 0) = 100C0 * 0.5^0 * 0.5^100

P(x = 0) = 1 * 1 * 7.88*10^-31

P(x = 0) = 7.88 * 10^-31

i think this could be a possible answer (1 / 84) -1

good luck! : d

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !