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4 years ago

Suppose a normal distribution has a mean of 12 and a standard deviation of 4

Mathematics

1 answer:

Sedaia [141]4 years ago

4 0

Answer:

The correct answer is C. 1.5

Step-by-step explanation:

To find this, first find the difference from the value to the mean.

18 - 12 = 6

Now that we have this, divide it by the size of a standard deviation to find how many it is away.

6/4 = 1.5

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An employee has a wage of $8 per hour. After a raise the employee earns $8.75. What was the percent increase?

pochemuha

Answer:

it would be a 9.38% increase

Step-by-step explanation:

5 0

3 years ago

Brandon is running errands for his mother.

LiRa [457]

Answer:

As it is clear that adding 1/4 + 2/3 will bring 11/12. Therefore, Brandon is correct when he claims that he walks a total of 11/12 mile if he goes from his house to the library to the grocery store.

Step-by-step explanation:

As Brandon is

1/4 mile from his house to the library

2/3 mile from the library to the grocery store

Brandon claims that he walked a total of 11/12 mile if he goes from his house to the library to the grocery store

So, adding 1/4 + 2/3 would determine whether he is right or wrong.

Thus, considering the expression

$\frac{1}{4}+\frac{2}{3}$

$\mathrm{Least\:Common\:Multiplier\:of\:}4,\:3:\quad 12$

$Adjust\:Fractions\:based\:on\:the\:LCM$

$\frac{1}{4}+\frac{2}{3}=\frac{3}{12}+\frac{8}{12}$

$=\frac{3+8}{12}$

$=\frac{11}{12}$

As it is clear that adding 1/4 + 2/3 will bring 11/12. Therefore, Brandon is correct when he claims that he walks a total of 11/12 mile if he goes from his house to the library to the grocery store.

Keywords: word problem, LCM, fraction

Learn more about fraction word problem from brainly.com/question/12248068

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8 0

3 years ago

–9x + by = 1<br> 3х - 2y = 2

alexdok [17]

Answer:

1. -9x+by=1 Answer : x=- 1/9 + by/9.

2. For 3x=2y=2, the answer is...

Exact form : x=29/3

Decimal for : x=9.666666666666666...

Mixed Number form : x=9 2/3

Step-by-step explanation:

1. Isolate the variable by dividing each side by factors that don't contain the variable.

2. Move all terms that do not contain x to the right side and then solve.

I hope this helps you out. If not, I am so sorry.

4 0

3 years ago

Which of the following lines is parallel to line y=-1/2x-6

Tasya [4]

Whichever line has the same slope (-1/2) as this line is the answer

5 0

3 years ago

In a family with 2 children, excluding multiple births, what is the probability of having a boy and a girl in any order?

ioda

50% because it can either girl or boy first. I hope i helped

4 0

3 years ago

Read 2 more answers