1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
FromTheMoon [43]
3 years ago
7

Determine whether the situation calls for a survey, an observational study, or an experiment.

Mathematics
1 answer:
antoniya [11.8K]3 years ago
4 0

Answer:

The answer is "experiment."

Explanation:

When it comes to finding out whether a new reading program can increase reading comprehension, an experiment is important. <em>This procedure is being used in order to validate a hypothesis, particularly in a research study.</em> In the situation above, you have to validate whether a new reading program can increase the reading comprehension or not.

The experiment consists of the <em>independent, dependent and controlled variables.</em> The independent variables are the ones being changed by the researcher, while the dependent variables tell whether the changes in the independent variable is significant. The controlled variables are the ones that are constant.

The<u> dependent variable above is the reading comprehension, </u>while the <u>new reading program is the independent variable. </u>Examples of controlled variables are the<u> age</u>s of the participants. The age directly affects the reading comprehension, thus it has to be considered.

You might be interested in
Select all the equations that have 9 as a solution.
bulgar [2K]

Answer: could I see the equtions pls

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
ITS A MULTI CHOSE QUESTION!! And help as fast as you can! Thank you
Montano1993 [528]

Answer:

Step-by-step explanation:

8 0
3 years ago
BRAINLIEST ASAP! PLEASE HELP ME :)
aleksandrvk [35]

Answer:

Two  

Step-by-step explanation:

The table is saying that, if Sandra swam enough races, she should expect to get 20 firsts, 12 seconds, 6 thirds, and two no placements.

Her expected value of points will be the average (mean) of all the points awarded for each race.

The average is the total number of points divided by the number of races.

\begin{array}{cccl}\textbf{Points} &  & \textbf{Total}\\\textbf{Awarded} & \textbf{Frequency} & \textbf{Points}\\3 & 20 & 60\\2 & 12 & 24\\1 & 6 & 6\\0 & 2 & 0\\\textbf{TOTAL} & \mathbf{40} & \mathbf{90}\\\end{array}

The simulation says that, if she swam 40 races, she should expect to earn a total of 90 points.

\text{Average} = \dfrac{\text{Total points}}{\text{Number of races }} = \dfrac{\text{90}}{\text{40}} =\textbf{2.25 points/race}

She can't win a fraction of a point, so she can expect to win two points in her first race.

5 0
3 years ago
Determine the intercepts of the line. − 3 x − 4 = − 5 y − 8 −3x−4=−5y−8
True [87]

Answer:

Step-by-step explanation:

6 0
2 years ago
Write an equation for a line that has slope of 4 and y- intercept of 7
grigory [225]

Answer:

y = 4x + 7

Step-by-step explanation:

the equation for a line is y = mx+b

the y intercept is (0,7)

so in the equation x= 0 and y= 7 and the slope is m, thus m= 4

7= (4)(0)+b

now solve for b

7 = 0 +b

7= b

so the equation of the line would be without the x and y points

y = 4x + 7

6 0
3 years ago
Other questions:
  • Jerry was given some birthday money. He puts the money in an account. Every month after that, he deposits the same amount of mon
    6·2 answers
  • Stacy rowed across the lake with her friend Rainey (in the same boat) at a rate of 4 mph. Rainey then rowed back at a rate of 3
    6·2 answers
  • Mrs. Rodriguez is making cookies. The ratio of walnuts to raisins she uses in her recipe is 3 to 5. If Mrs. Rodriguez decides to
    13·1 answer
  • PLEASE HELP
    13·1 answer
  • I NEEEEEEEED HELPPPPPPPPPPPP!!!
    12·1 answer
  • 5^(11x+23)=125^(7x)<br> how to solve for x
    15·1 answer
  • Could someone help im really bad at polynomials
    14·1 answer
  • Heloo hello HELPP FAST OR ILL DIE
    13·1 answer
  • In the diagram below of triangle HIJ, K is
    8·1 answer
  • How to solve Need Answer asap
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!