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3 years ago

For a normal distribution what percentage of data falls within one standard deviation of the mean

Mathematics

1 answer:

3241004551 [841]3 years ago

8 0

Answer:

For a normal distribution 68% of data falls within one standard deviation from mean on both sides of mean

Step-by-step explanation:

A normal distribution's graph is a bell shaped curve that is completely described by its mean and standard deviation. Standard deviation is measured in terms of distance from mean.

34% of data is covered in one standard deviation from mean on one side.

Therefore, for a normal distribution 68% of data falls within one standard deviation from mean on both sides of mean ..

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Professor Vinculum investigated the migration season of the Bulbul bird from their natural wetlands to a warmer climate. He foun

coldgirl [10]

The population of the Bulbul birds at the start of the migration season is 1800.

<h3>Exponential function</h3>

An exponential function is given by:

y = abˣ

Let y, x are variables, a is the initial value and b is the multiplication factor.

Let P be the population of the bird t days since the start of the migration season.

$P=1350+400(1.25)^{-t}\\\\At\ the\ start\ of\ the\ season(t=0):\\\\P=1350+400(1.25)^{-0}\\\\P=1350+450=1800$

The population of the Bulbul birds at the start of the migration season is 1800.

Find out more on Exponential function at: brainly.com/question/12940982

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2 years ago

Roger made 8 1/2 quarts of hot chocolate. Each mug holds 1/2 of a quart. How many mugs will Roger be able to fill?

blondinia [14]

Number of mugs = 8.5/0.5=17

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3 years ago

3) Find the values of a,b ,c and for y=x^2-9x+18.

NeX [460]

Answer:

a = 1

b = -9

c = 18

6 0

2 years ago

At the beginning of school you set-up a 4 digit pin to get into your My Payments Plus account, however you have not used your ac

djverab [1.8K]

Answer:

Given that only the first digit and a range of four possible numbers for the second digit of the four digit pin number are remembered, the number of different possible combinations are 400 (possible combinations)

Step-by-step explanation:

The given information are;

The number of digits contained in the pin = 4 digits

The number of digits that can be the first number = 1 (given that the first digit is 4)

The number of digits that can be the second number = 4 (6, 7, 8, or 9)

Therefore, we have;

The number of digits that can be the third number = 10 (0, 1, 2, 3, 4, 5, 6, 7, 8, or 9)

Similarly, the number of digits that can be the fourth number = 10

Therefore, the total number of possible combinations are;

1 × 4 × 10 × 10 = 400 possible combinations.

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3 years ago

90.5 is 25% of what number

fiasKO [112]

Answer:

362

Step-by-step explanation:

25% can go into 100% quite easy

All you do is multiply it by 4

90.5 * 4 would be 362

7 0

2 years ago

Read 2 more answers