Answer:
5
Step-by-step explanation:
Since we have not instructed to follow any kind of rule dividing, we can write in any form. Let's calculate it using fraction

We can multiply both the nominator and denominator with 100

The answer is 5.
We can also solve it as a division of fractions:

Given:
μ = 500 days, the population mean
σ = 60 days, the population standard deviation
Therefore
μ + σ = 560
μ - σ = 440
μ + 2σ = 620
μ - 2σ = 380
μ + 3σ = 680
μ - 3σ = 320
The figure shown below illustrates the normal distribution
About 68% of the total area lies in x = (μ-σ, μ+σ)
About 95% of the total area lies in x = (μ-2σ, μ+2σ)
About 99.7% of the total area lies in x = (μ-3σ, μ+3σ).
Realmente no entiendo esta pregunta, lo siento mucho, pero espero que lo resuelvas. Lo siento, nuevamente..
Answer:
w<10
number - A
(<) means "open circle to the left."