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3 years ago

What is the proportion of scores in a normal distribution between the mean (z = 0.00) and z = +0.52?

Mathematics

1 answer:

sweet-ann [11.9K]3 years ago

6 0

Answer:

20%

Step-by-step explanation:

We are asked to find the proportion of of scores in a normal distribution between the mean (z = 0.00) and z = +0.52.

We will use normal distribution table to find area under normal distribution curve corresponding to given score as:

$P(0.00$

Using normal distribution table, we will get:

$P(0.00$

Therefore, approximately 20% of scores in a normal distribution between the given z-scores.

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ziro4ka [17]

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3 years ago

What fraction makes the equation true? Enter the answer in the boxes. 5/6x =20/24

Darina [25.2K]

Answer:

x=1

Step-by-step explanation:

To find the value of x, we have to move all the real numbers to the other side.

5/6x = 20/24

We have divide each side by 5/6. Once we do that, we get—

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3 years ago

Suppose a radioactive substance has a half-life of 1000 years. What fraction will be left after 1000 years?

salantis [7]

Answer:

$\frac{1}{2}$

Step-by-step explanation:

The half life is the amount of time it takes a substance to decay to half of its original amount.

Since the radioactive substance has a half life of 1000 years, there will be half of it left after 1000 years.

So, the fraction that will be left after 1000 years is $\frac{1}{2}$

3 0

3 years ago

Read 2 more answers

A bank loaned out $28,500, part of it at the rate of 14% annual interest, and the rest at 4% annual

Flauer [41]

Answer:

$15,000 was invested at 14% per year, and $13,500 was invested at 4% per year.

Step-by-step explanation:

Given that a bank loaned out $ 28,500, part of it at the rate of 14% annual interest, and the rest at 4% annual interest, and the total interest earned for both loans was $ 2,640.00, to determine how much was loaned at each rate you must perform the following calculations:

28,500 x 0.14 + 0 x 0.04 = 3,990

20,000 x 0.14 + 8,500 x 0.04 = 3,140

15,000 x 0.14 + 13,500 x 0.04 = 2,640

Therefore, $ 15,000 was invested at 14% per year, and $ 13,500 was invested at 4% per year.

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2 years ago

What is the length of the hypotense,c? 26 m 29 m 34 m 36 m

MAXImum [283]

Answer:

Choice C

Step-by-step explanation:

Using the Pythagorean theorem, you can find that the length of the hypotenuse is:

$\sqrt{3^2+5^2}=\\\\\sqrt{9+25}=\\\\\boxed{\sqrt{34}}$

Hope this helps!

9 0

3 years ago

Read 2 more answers