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mestny [16]
3 years ago
7

The age of trees in a forest is known to be approximately normal with an average age of 40 years and a standard deviation of 10

years. What is the standardized score for a tree that is 34 years old?

Mathematics
1 answer:
Keith_Richards [23]3 years ago
6 0

Answer: D. -0.6

Step-by-step explanation:

Z score formula= x-mean/ SD

34-40/10= -3/5= -0.6

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romanna [79]
2/3 * 2 = 4/6

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8 0
3 years ago
What is the value of r for 19 and 20?
nata0808 [166]

Answer:

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Step-by-step explanation:

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Point-slope form is:

y - y1 = m(x - x1)

Substitute the numbers into the equation:

y - 3 = 7/6(x - 1)

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Now that we know the equation, we can put in the x value to find the y (In this case, y = r):

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r = 1

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