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grigory [225]
3 years ago
15

(NEED HELP ASAP)Determine whether the situation calls for a survey, an observational study, or an experiment. You want to find n

ew car buyers' opinions on the most important options. Question 7 options: survey observational study experiment
Mathematics
1 answer:
vladimir2022 [97]3 years ago
8 0

Answer: The answer is "experiment."

Step-by-step explanation:

This procedure is being used in order to validate a hypothesis, particularly in a research study. In the situation above, you have to validate whether a new reading program can increase reading comprehension or not.

The experiment consists of independent, dependent, and controlled variables. 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 dependent variable above is reading comprehension, while the new reading program is the independent variable. Examples of controlled variables are the ages of the participants. The age directly affects the reading comprehension, thus it has to be considered.

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DER GRIDDED RESPONSE Mr. Reinard
Zolol [24]

Answer:

2

Step-by-step explanation:

you divide the number of dollars he spent by how many pounds of feed he bought to get the dollar/pound rate

5 0
3 years ago
Find three consecutive numbers whose sum equals<br>999.​
mina [271]

Answer:

332, 333, 334

Step-by-step explanation:

First, we acknowledge that the equation that we need to solve will be "x+(x+1)+(x+2)=999" This is because x represents the smallest of three consecutive numbers whose sum is 999. Simplifying this equation will leave us with 3x+3=999 which is simplified further to 3x=996 and again simplified to x=332. X is the smallest number of the three.

4 0
3 years ago
Maria mixed a purple paint color using 5 tubes of blue and 7 tubes of red to create one painting. How many tubes of red paint wo
saveliy_v [14]

Answer:

42

Step-by-step explanation:

because it took 7 tubes of red for one painting and when she does 6 you would multiply 6x7 and it would equal 42.

5 0
3 years ago
Provide an appropriate response.
oksian1 [2.3K]
You don't even have to look up the definition of 'standard deviation'.  You only
have to remember that 'smaller standard deviation' means 'less spread-out'.

First, let's find the mean (average).  It's not supposed to change:

1/7th of (65 + 71 + 77 + 80 + 82 + 90 + 96) = 561/7 = <u>80 and 1/7</u> .

Now, just pick 7 scores that total 561 and are all bunched up.

The easiest way would be 80, 80, 80, 80, 80, 80, 81 .
But that's so easy that it feels like cheating.

Let's say <u>77, 78, 79, 80, 81, 82, and 84</u> .
8 0
3 years ago
(-3.8)+(-21.14)+(-0.55)
DerKrebs [107]

Answer:

-25.49

Step-by-step explanation:

(-3.8)+(-21.14)+(-0.55)

-3.8-21.14-0.55

-25.49

7 0
3 years ago
Read 2 more answers
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