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babunello [35]
4 years ago
11

In a recent study, volunteers who had 8 hours of sleep were three times more likely to answer questions correctly on a math test

than were sleep-deprived participants. Complete parts a through d?
A) The sample is the sleep-deprived participants in the study.
B) The sample is the responses of the volunteers in the study.
C) The sample is the amount of sleep the volunteers got in the study.
D) The sample is the math questions in the study.
Mathematics
1 answer:
kumpel [21]4 years ago
6 0

Answer:

(c) the sample is amount of sleep the volunteers got in the study.

Step-by-step explanation:

sample: this is a small part that is intending to show what a big part is all about.

volunteer: a person who does something willingly.

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What does first difference mean?
Sunny_sXe [5.5K]

Answer:

In statistics and econometrics, the first-difference (FD) estimator is an estimator used to address the problem of omitted variables with panel data. It is consistent under the assumptions of the fixed effects model. In certain situations it can be more efficient than the standard fixed effects (or "within") estimator.

First differences are the differences between consecutive y-‐values in tables of values with evenly spaced x-‐values. If the first differences of a relation are constant, the relation is _______________________________ If the first differences of a relation are not constant, the relation is ___________________________

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3 years ago
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Write the ratio for cosB
natima [27]

Answer:

11/61

Step-by-step explanation:

cos b = adj side/hypotenuse

=11/61

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2 years ago
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A 4th grade class took a field trip to a science museum. There are 24 students in the class. Each student
brilliants [131]

Answer:

<em><u>$432</u></em>

Step-by-step explanation:

Students:24

Ticket:$9

Lunchbox:$9

9+9=18

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3 years ago
With a beginning balance of $2500 and no additional charges, there is no grace-period, you will just pay the minimum payment eac
valkas [14]

Answer:

a = $31.23 per month

b = $20.83 per month

c = 249.98 = $249.98 interest charges

                   = $624-249.98 = 374.02 profit part decrease 8% inc.                  

d = 35.35%

e = Answer is in the name; basic payment is a contract which means whilst account remains open charges are requested without fail. Should balance be less or on zero, charges are still applied.

Step-by-step explanation:

2500 x 1.2499 = interest only for start month 13 =3124.75

3124.75/ 100 x 1.08   = 8% of this = 249.98 each year.

We only have to divide each by 12 to work out monthly individual charges and subtract to find out payments.

3124.75 - 249.98 = 2874.77 = Total after charges each year.

249.98/12 = 20.83 = monthly charges.

3124.75- 2500 = 624.75 payments each year

624.75/12 = 52.06 month 1 payment before charge

52.06-20.83 =31.23 total minimum payment

2500 + 249.98

Percentage = 200:600 = 1/3 33% + (comparing to ratio 10:25 closer to 40%)

We find ratio 200:600= 33.33 + 49.995/24.75 = 2.02

33+2.02 = 35.35%

7 0
4 years ago
7. A classroom has 7 blue chairs, 5 green
gizmo_the_mogwai [7]
If a chair is selected at random it would be blue because that’s the most chosen color
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3 years ago
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