$0.09 per ounce Because there are 16 ounces in a pound, 3.4 pounds is 3.4(16) = 54.4 ounces. To find cost per ounce, divide the cost in dollars by the number of ounces
Answer:
15.87%
Step-by-step explanation:
Given that:
The mean (μ) = 1000 hours, the standard deviation (σ) = 100 hours.
The z score provides a means of measurement in statistics to determine the variation of a raw score from the mean. The z score is given as:

To find that a randomly chosen light bulb will last less than 900 hours:

Therefore, P(x < 900) = P(z < -1) = 0.1587 = 15.87%
1: $5
2:$9
3. Variables and letters and symbols that represent unknown values
32.66 would be the correct answer.