Answer: Option D
Step-by-step explanation:
We can use the binomial formula to solve this problem.
Where p is the probability of success, n is the sample size and x is the number of successes expected.
Note that in this case
(probability that a part is defective)
Then we calculate the probability
Answer: a
Step-by-step explanation:
<h3>
Answer:</h3>
D. an = 14 - 1.5n
<h3>
Step-by-step explanation:</h3>
Selection D is the only one that works to give a1 = 12.5.
Answer:
280 ml as a percentage of 140 l is 0.2%
Step-by-step explanation:
- Note that 1 liter = 1000 milliliters
- To find a percentage of a number divide the number by the total and multiply the quotient by 100%
∵ There is an amount of 280 ml
∵ The total amount is 140 l
→ Change the liter to milliliters using the 1st point above
∴ 140 l = 140 × 1000 = 140000 ml
∴ 140 l = 140,000 ml
→ Now divide the amount by the total, then multiply the quotient by 100%
∵ 280 ÷ 140,000 =
∵ × 100% = 0.2%
∴ 280 ml as a percentage of 140 l is 0.2%