3 years ago

What are the right answers and how do you find it?

Mathematics

1 answer:

IceJOKER [234]3 years ago

8 0

This is the correct answers

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For a population with a mean of u = 40 and a standarddeviation of o = 8, find the z-score corresponding toeach of the following

ivann1987 [24]

Solution:

Given the mean and standard deviation;

$\mu=40,\sigma=8$

The z-score formula is;

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

(a)

$\begin{gathered} x=34,n=1 \\ \\ z=\frac{34-40}{\frac{8}{\sqrt{1}}} \\ \\ z=-0.75 \end{gathered}$

(b)

$\begin{gathered} x=34,n=4 \\ \\ z=\frac{34-40}{\frac{8}{\sqrt{4}}} \\ \\ z=-1.5 \end{gathered}$

(c)

$\begin{gathered} x=34,n=16 \\ \\ z=\frac{34-40}{\frac{8}{\sqrt{16}}} \\ \\ z=-3 \end{gathered}$

5 0

1 year ago

Arrange from least to greatest<br><br> 0.1, 1, -1, 0

wariber [46]

Answer:

-1, 0, 0.1, 1

Step-by-step explanation:

-1 is a negative value, which makes it before 0

0.1 is less than 1 but more than 0

7 0

3 years ago

Read 2 more answers

Write an equation for the nth term of the arithmetic sequence. Then find a50.<br> 8, 2, -4, - 10,

AlexFokin [52]

Answer: See below

Explanation:

Write an equation for nth term:

a + d(n - 1)

a = 8 (first term)
d = -6 (common difference)

8 - 6(n - 1)
= 8 - 6n + 6
= -6n + 14

Find a 50:

-6(50) + 14
= -300 + 14
= -286

6 0

3 years ago

What is the sum of the first 10 terms of the sequence defined by an=2n-3

makvit [3.9K]

$a_n = 2n - 3$

$\text {When n = 10,}$

$a_{10} = 2(10) - 3$

$a_{10} = 17 \text { Answer (B)}$

------------------------------------------
Answer: The 10th term is 17.
------------------------------------------

5 0

3 years ago

Read 2 more answers

Solve the equation f/3+22=17

andrezito [222]

1) f/3 + 22 = 17

2) f/3 + 22 - 22 = 17 - 22

= f/3 = -5

3) 3 • f/3 = 3(-5)

= f = 3(-5)

= f = -15

Your answer would be f = -15

:)

4 0

3 years ago

Read 2 more answers