The answer is A. This is because 3/4 multiplied by 7/8 is 21/32 which is less than 7/8.
Answer:
9.52 answer of third and all you answer are correct
Answer:
a) 3
b) 15
Step-by-step explanation:
We can treat this as a binomial distribution because there is a fix number of trials (18), the trials are independent, there are only two possible outcomes for each trial and the probability of obtaining a toaster that required repairs is always 0.10.
The formula for the binomial distribution is shown in the picture.
P(0) = 18! ÷ (18 - 0)! ÷ 0! × 0.1⁰ × 0.9¹⁸ = 0.1500
We can do this for each value or we can use a binomial distribution calculator. The number of trials N is 18 and the probability p or π is 0.10.
a)
We find that the probability of obtaining at least 2 toasters that required repairs (x ≥ 2) is 0.5497. Since this value is greater than 0.54 we conclude than the number x is 3.
b)
We can calculate the binomial distribution for the toasters that didn't require repairs instead. In this case the number of trials is going to be the same but the probability in this case is going to be 0.90
The probability that at least 15 of them do not require repairs is 0.9018.
Answer:
The property for 8 +0 = 8, Additive Identity Property
Answer:
15%
Step-by-step explanation:
1. Subtract final value from starting value
65 - 55.25 = 9.75
2. Divide 9.75 by original number
9.75/65 = 0.15
3. Multiply quotient by 100 to get percentage
0.15 x 100 = 15%
