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skelet666 [1.2K]
3 years ago
15

A researcher uses an anonymous survey to investigate the study habits of American college students. Based on the set of 56 surve

ys that were completed and returned, the researcher finds that these students spend an average of 4.1 hours each week working on course material outside of class. For this study, the average of 4.1 hours is an example of a?
Mathematics
1 answer:
tresset_1 [31]3 years ago
8 0

Answer:

Statistic

Step-by-step explanation:

A statistic is any quantity computed from values in a sample. Some examples of statistics are: sample mean (also called average, like in this case),   sample median, sample mode, sample standard deviation, sample quartiles and sample percentiles.

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ΔABC and ΔXYZ are similar triangles. The lengths of two sides of each triangle are shown. Find the lengths of the third side of
Norma-Jean [14]

Answer:

b=9

x=5.5

Step-by-step explanation:

find the common ration

AB is 6, and XY is 3 (they are the corresponding sides)

ratio is 2 to 1 (6/3=2/1)

AC corresponds with YZ

XY is 4.5 so b is 4.5*2=9

ZY corresponds with CB

CB is 11, since XYZ is the smaller divide by 2 instead of multiplying by 2

4 0
3 years ago
What is the slope of the line passing through the points (-3,<br> -5) and (-1, - 6)?
Ira Lisetskai [31]

Answer:

-1/2

Step-by-step explanation:

We can find the slope using the slope formula

m = ( y2-y1)/(x2-x1)

   = ( -6 - -5)/( -1 - -3)

   = ( -6+5)/( -1+3)

   =-1/ 2

3 0
3 years ago
Read 2 more answers
If line L is perpendicular to line m and the slope of line L is undefined, what is the slope of line m?
Delicious77 [7]

Step-by-step explanation:

mL = Undefined

mM = ?

mL × mM = -1

mM = -1 ÷ mL

mM = -1/mL

mM = -1/Undefined

mM = -1/(1/0)

mM = (-1 × 0)/1

mM = 0

Slope of line m is 0

Option → C

8 0
3 years ago
SOMEONE HELP ME NOW. AND I WANT THE RIGHT ANSWER PLEASE
scoray [572]
The first answer is correct
C(2, -2) D(-1, -2)
because the line from point a to point b is 3 units long and 3 x 4 = 12 (area) (and 12/3=4) so, the points that are exactly 4 units down from point a and point b would be the correct answer - (2, -2) and (-1, -2)














6 0
3 years ago
Read 2 more answers
Jada has a new puppy that weighs 9 pounds. The vet says that the puppy is now about 20% of its adult weight. What will be the ad
Mamont248 [21]

Answer:29.7

Step-by-step explanation:

30/100

9 x 3/10

90/1 x 10/3 = 90

90 divided by 30 is 30

4 0
3 years ago
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