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8090 [49]
3 years ago
9

Honestly just use this question for points∵∴∵∴∴∴∴∴∴∴∴∵∵∵∵ω¬⊆∫ω⊇∞⇄α∡∴⊕α⇔Δπβ⇄≠∡ωαФ║∫⊆Ф∞Ф

Mathematics
1 answer:
zubka84 [21]3 years ago
8 0

Answer:

yes!!!!!!!!!! THE BEST!!!!!

Step-by-step explanation:

(can I have brainliest? I'm trying to get higher than ambitious) XD

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Glaucoma is a disease of the eye that is manifested by high intraocular pressure. The distribution of intraocular pressure in th
lana [24]

Answer:

(a) 9.18% of people have an intraocular pressure lower than 12 mm Hg.

(b) 80% of adults in the general population have an intraocular pressure that is greater than 13.47 mm Hg.

Step-by-step explanation:

We are given that the distribution of intraocular pressure in the general population is approximately normal with mean 16 mm Hg and standard deviation 3 mm Hg.

Let X = <u><em>intraocular pressure in the general population</em></u>

So, X ~ Normal(\mu=16,\sigma^{2} = 3^{2})

The z score probability distribution for normal distribution is given by;

                             Z  =  \frac{ X-\mu}{\sigma } }  ~ N(0,1)

where, \mu = population mean = 16 mm Hg

           \sigma = standard deviation = 3 mm Hg

(a) Percentage of people have an intraocular pressure lower than 12 mm Hg is given by = P(X < 12 mm Hg)

       P(X < 12) = P( \frac{ X-\mu}{\sigma } } < \frac{ 12-16}{3 } } ) = P(Z < -1.33) = 1 - P(Z \leq 1.33)

                                                   = 1 - 0.9082 = <u>0.0918</u> or 9.18%

The above probability is calculated by looking at the value of x = 1.33 in the z table which has an area of 0.9082.

(b) We have to find that 80% of adults in the general population have an intraocular pressure that is greater than how many mm Hg, that means;

        P(X > x) = 0.80      {where x is the required intraocular pressure}

        P( \frac{ X-\mu}{\sigma } } > \frac{ x-16}{3 } } ) = 0.80

        P(Z > \frac{ x-16}{3 } } ) = 0.80

Now, in the z table the critical value of z which represents the top 80% of the area is given as -0.842, that is;

                           \frac{ x-16}{3 } } = -0.842

                           x -16 = -0.842 \times 3

                           x = 16 - 2.53 = <u>13.47</u> mm Hg

Therefore, 80% of adults in the general population have an intraocular pressure that is greater than 13.47 mm Hg.

8 0
3 years ago
-9(-7) plz help very confusled
aleksley [76]

Answer:

So, negatives cancel each other out.

Step-by-step explanation:

The answer is 63.

A negative times a negative gives you a positive.

-9 x -7 brings you = 63.

3 0
3 years ago
Find three points that belong to the graph and use them to sketch the graph of the equation: y = −3 −x
dalvyx [7]

Answer:

To find a point that belongs to the graph, you have to assume the value of one variable and compute the other one. For example, if x = 0, then y = -3 -0 = -3. Similarly:

x   y

0   -3

1    -4

2    -5

To make the graph, locate the previous points on the coordinate plane and then draw the line that passes through them (see figure attached)

6 0
3 years ago
The distance that an automobile travels varies directly as the time it travels. If the car travels 280 miles in 7 hours, how far
rusak2 [61]
280 divided by 7 equals 40 and forty times 12 equals 480 so the answer is 480
8 0
3 years ago
How does the graph of y = sec(x + 3) – 7 compare with the graph of y = sec(x)?
Alla [95]

Answer:

The function y = sec(x) shifted 3 units left and 7 units down .

Step-by-step explanation:

Given the function: y = sec(x)

  • If k is any positive real number, then the graph of f(x) - k is  the graph of y = f(x) shifted downward k units.
  • If p is a positive real  number, then the  graph of f(x+p) is  the graph of y=f(x)  shifted to the left  p units.

The function y = \sec(x+3)-7 comes from the base function y= sec(x).  

Since 3 is added added on the inside, this  is a horizontal shift Left 3 unit, and since 7 is subtracted on the outside, this is a vertical shift  down 7 units.

Therefore, the transformation on the given function is shifted  3 units left and 7 units down


3 0
3 years ago
Read 2 more answers
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