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3 years ago

True or False: A sample taken from a normally distributed population will also be normally distributed.

Mathematics

2 answers:

ElenaW [278]3 years ago

6 0

The correct answer is:

False.

Explanation:

We cannot be sure that all samples from a normal distribution will also be normally distributed.

The Central Limit Theorem states that the sampling distribution of the sample means approaches a normal distribution as the sample size gets larger, especially for sample sizes over 30. Basically as you take more samples from a given distribution, especially large samples, the graph of the sample means will look more like a normal distribution.

However, this does not state that all samples of a normal distribution will also be normal.

Klio2033 [76]3 years ago

5 0

Answer:is true just got it wrong on edgen because of the person above me

Step-by-step explanation:

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Compute a value for t that satisfies the equation below. "-2/3" t - 2 = - 3

Dima020 [189]

Answer:

t = 3/2

Step-by-step explanation:

Instead of randomly guessing values of "t" that will satisfy the equation, you can easily find the correct value by solving the equation in terms of "t". In other words, you can set the equation equal to "t" to find the final answer.

(-2/3)t - 2 = -3 <----- Original equation

(-2/3)t = -1 <----- Add 2 to both sides

t = 3/2 <----- Divide both sides by -2/3

You can check this value by plugging it into "t" and determining whether both sides of the equations will be equal.

(-2/3)t - 2 = -3 <----- Original equation

(-2/3)(3/2) - 2 = -3 <----- Plug 3/2 into "t"

-6/6 - 2 = -3 <----- Multiply -2/3 and 3/2

-1 - 2 = -3 <----- Simplify -6/6

-3 = -3 <----- Subtract

6 0

1 year ago

Does anyone know how to do this?

Strike441 [17]

Answer:

$196 m^{2}$

Step-by-step explanation:

A square is a shape that which all sides are equal

14 is one side of the square and to find the area of a square/rectangle, you do length*width

14*14=196

6 0

2 years ago

Given the function f(x)=-x+3, find the value of f(13).

Otrada [13]

F(13) means x equals 13.

Replace x in the equation with 13 and solve:

-13 + 3 = -10

F(13) = -10

3 0

2 years ago

Read 2 more answers

4 bells toll together at 9 am. They toll after 7, 8. 11 and 12 seconds respectively. How many times will they toll together agai

Svetach [21]

Answer:

5 times

Step-by-step explanation:

What we need to do here is to find the lowest common multiple of 7,8,11 and 12

This is;

1848

Now, let’s calculate the number of seconds in 3 hours

In 1 hour, we have 3600 seconds

In 3 hours, this will be;

3600 * 3 = 10,800 seconds

So, to find the number of times in which all 4 will toll together, we need to know the number of 1848 seconds in 10,800 seconds

Mathematically, that will be;

10,800/1848 = 5.844

Our answer will be 5 times however

This is because the sixth time they would have sounded together would be more than the 3 hours time frame

8 0

2 years ago

What multiplication sentences are in the same fact family as 54•6 = 9

blsea [12.9K]

6•54 u just have to switch it around

3 0

3 years ago