ch 12 for this density curve, what percent of the observations lie above 0.2?\n80%\n10%\n20%\n90%\nquestion…

ch 12 for this density curve, what percent of the observations lie above 0.2?\n80%\n10%\n20%\n90%\nquestion 2\n1 pts\nch 12 when we draw a card from a deck, the outcome is uncertain. the cards value is\ndeterministic.\npredictable.\nrandom.

ch 12 for this density curve, what percent of the observations lie above 0.2?\n80%\n10%\n20%\n90%\nquestion 2\n1 pts\nch 12 when we draw a card from a deck, the outcome is uncertain. the cards value is\ndeterministic.\npredictable.\nrandom.

Answer

Explanation:

Step1: Recall property of density - curve

The total area under a density - curve is 1. For a uniform density - curve from (x = 0) to (x = 2) with height (h=0.5), we want to find the proportion of the area above (x = 0.2).

Step2: Calculate the proportion of the area

The length of the interval from (x = 0) to (x = 2) is (L=2 - 0=2). The length of the sub - interval from (x = 0) to (x = 0.2) is (l = 0.2-0 = 0.2). The proportion of the area corresponding to the sub - interval from (x = 0) to (x = 0.2) is (\frac{l}{L}=\frac{0.2}{2}=0.1). The proportion of the area above (x = 0.2) is (1 - 0.1=0.9) or 90%.

For the second question: When we draw a card from a deck, the outcome is uncertain. A deterministic process has a fixed and known outcome, which is not the case here. Predictable implies we can know the result in advance, which is not true for a card draw. The card's value is random because there are multiple possible outcomes and we cannot know which one will occur in advance.

Answer:

Question 1: 90% Question 2: random.