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romanna [79]
2 years ago
8

Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of

0 and a standard deviation of 1. Find the probability that a given score is less than 1.99 and draw a sketch of the region.

Mathematics
1 answer:
Effectus [21]2 years ago
3 0

Answer:

Step-by-step explanation:

To find this probability, we shall be using the z-score route

Mathematically ;

z-score = (x -mean)/SD

From the question, x = 1.99, mean = 0 and SD = 1

So z = (1.99-0)/1 = 1.99

So the probability we want to calculate is;

P(z<1.99)

This value can be obtained from the standard normal distribution table.

P(z < 1.99) = 0.9767

The sketch of the region is as shown as in the attachment.

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There is some ambiguity here which could be removed by using parentheses.  I'm going to assume that you actually meant:

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To determine the domain of this function, factor the denominator:

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The given function h(x) is undefined when the denominator = 0, which happens at {-6, 0, 6}.

Thus, the domain is "the set of all real numbers not equal to -6, 0 or 6."

Symbolically, the domain is   (-infinity, -6) ∪ (-6, 0) ∪ (0, 6) ∪ (6, +infinity).

3 0
3 years ago
at the craft store , alan bought a bag of orange and green marbles. the bag contained 25 marbles, and 40% of them where orange.
Kazeer [188]

Answer:

There are 10 orange marbles

Step-by-step explanation:

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4 0
3 years ago
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What is the domain of the sine and cosine functions?
eimsori [14]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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D is the correct answer you can also use desmos just search it up!
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