2 years ago

An 80% confidence interval is found to be (12, 20). What is the margin of error?

Mathematics

1 answer:

Sonja [21]2 years ago

4 0

Answer:4

Step-by-step explanation:

You might be interested in

What is the answer to this question. Answer needed ASAP

vaieri [72.5K]

352 divided by 8=44
Each school will get 44 books.

3 0

3 years ago

Read 2 more answers

Find the value of x that makes m|n.<br> m<br> (6x + 10)<br> (2x + 26)<br> The value of x is ?

olga nikolaevna [1]

Answer:

x is 9

Step-by-step explanation:

6x+10=2x+26

-2x -2x

4x+10=26

+10 +10

4x=36

--- ---

4 4

x=9

8 0

3 years ago

Given the geometric sequence where a1 = 3 and r = √2 find a9

Zigmanuir [339]

Answer:

$a_9=48$

Step-by-step explanation:

we are given

sequence is geometric

so, we can use nth term formula

$a_n=a_1(r)^{n-1}$

we have

$a_1=3$

$r=\sqrt{2}$

we have to find a9

so, we can plug n=9

we get

$a_9=3(\sqrt{2})^{9-1}$

$a_9=2^4\cdot \:3$

$a_9=48$

8 0

2 years ago

Karina needs a total of $45 to buy her mother a birthday present. She has saved 20% of the amount so far. How much has she saved

professor190 [17]

Answer:

$9.00

Step-by-step explanation:

$45.00x20%=9

7 0

2 years ago

Read 2 more answers

8. The Wilson family was one of the first to come to the U.S. They had 6 children. Assuming that the probability of a child bein

melamori03 [73]

Total children = 6
1) Probability of 4 girls =4/6=0.66
Probability of at least 4 girls >_ 0.66

That is greater or equal to 0.66

2) probability of 5 girls = 5/ total children
=5/6=0.83
Probability of at most 5 girls <_ 0.83
That is less than equal to 0.83

7 0

2 years ago