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Vilka [71]
3 years ago
12

A flight academy had a graduation rate of 85.1 for 27-year old candidates from 2000-2009. Since then, new instructors have been

hired that have specifically worked on providing clearer instruction to pilot candidates. From 2010-2018, the graduation rate for 27-year old candidates is 88.3. What percentile did the organization start at from 2000-2009, and what percentile is the organization now (2010-2018)
Mathematics
1 answer:
atroni [7]3 years ago
6 0

Answer:

The value of percentile at start is 3.01 while that of now is 55.17.

Step-by-step explanation:

For the year the 2009 the value is given as 88.1 with a standard deviation of 1.6

Now for the value of 85.1 as of 2000-2009 the z score is given as

z=\frac{x-\mu}{\sigma}\\z=\frac{85.1-88.1}{1.6}\\z=-1.88

For this value of z, the P(z<x) is given as 0.0301. The corresponding percentile is 3.01.

Now for the value of 88.3 for 2010-2018, the z value is

z=\frac{x-\mu}{\sigma}\\z=\frac{88.3-88.1}{1.6}\\z=0.13

For this value of z, the P(z<x) is given as 0.5517 The corresponding percentile is 55.17.

The population between these two percentiles is given as 55.17-3.01 which given the value as 52.16.

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Can someone help me I don’t know how to do this
babunello [35]

Answer:

4\ frac {1}{9}

Step-by-step explanation:

The recurring part is .111111

Now the number is 4.1111111111111 and let this number be x.

If you get 10x we shall have

10x=41.1111111111..... Equation 1

x=4.11111.... Equation 2

Subtract equation 2 from 1

10x-x=41.11111111-4.11111111=37

9x=37 hence x=37/9

The number will be \frac {37}{9}=4\frac {1}{9}

4 0
3 years ago
The figure below is reflected over the x-axis. What are the coordinates of the image of point A after this transformation?​
Alekssandra [29.7K]

Answer: (2,8)

Step-by-step explanation:

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7 0
2 years ago
What is the speed of a snake that moves 20 m in 5 seconds ?
pogonyaev

The speed of the snake is 8.95 miles per hour.

Step-by-step explanation:

Step 1:

The snake travels at a speed of 20 meters in 5 seconds.

We will need to determine the distance it covered in a single second. To do that we divide the distance covered in 5 seconds by 5.

The distance covered in 1 second = \frac{20}{5} =4.

So the snake is moving at a distance of 4 meters per second.

Step 2:

To convert the speed of the snake from meters per second to miles per hour, we multiply the speed in meters per second by 2.23694.

So to attain 4 meters per second in miles per hour, we multiply it by 2.23694.

4 meters per second = 2.23694(4) = 8.94776 miles per hour.

Rounding this off, we get the speed of the snake as 8.95 miles per hour.

7 0
3 years ago
OK this id just for fun but how many holes are in A Polo
krok68 [10]
Four holes I believe.
Just a wild guess though.
8 0
3 years ago
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BRAINLIEST:
Romashka-Z-Leto [24]

Answer:

2

Step-by-step explanation:

what you do is -4(2)^-2 which is -1

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7 0
2 years ago
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