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jekas [21]
3 years ago
8

A biologist sets up cameras to record all the animals that come to a watering hole over a 30 day period. This is an example of w

hat kind of statistical study? Experiment Observational Study Survey
Mathematics
1 answer:
labwork [276]3 years ago
3 0
This is an example of observational study, because the biologist is not interfering or interacting with the subjects of study but just watching and registering data (recording with cameras).

The biologist is not conducting an experiment because (he is not setting up special conditions to register different responses to drive conclusions), and the biologist is not making any survey (questionnaires for example).

Answer: observational study


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use the circle graph show below to answer the question a pie chart labeled favorite sports to watch is divided into into three p
mart [117]
From the pie chart described, the percent of people that responded that football was their favorite sport to watch is 42% which represents 210 of the people surveyed.

Let the number of people surveyed be x, then

42%\ of\ x=210 \\  \\ \Rightarrow0.42x=210 \\  \\ \Rightarrow x= \frac{210}{0.42} =500

Therefore, the number of people surveyed is 500 people.
6 0
3 years ago
In addition, what is the inverse
insens350 [35]

Answer:

it is

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2 years ago
Write a numerical expression : Sara catches 15 fish and lets o fish go"<br><br><br><br>​
Brrunno [24]
[15-0] would be a numerical expression for this. :P
3 0
2 years ago
Kira decorates the exterior faces of a gift box in the shape of a cube .What is the surface area in square inches of the gift bo
Gekata [30.6K]

Answer:

The surface area of the gift box that Kira decorates is 253.5\ in^{2}

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

A cube has six square faces

The surface area of a cube is equal to the area of the six squares faces

SA=6b^{2}

where

b is the length side of a cube

In this problem we have

b=6.5\ in

substitute

SA=6(6.5)^{2}

SA=253.5\ in^{2}

7 0
3 years ago
How do i solve this equation? and could you show it to me step by step?
ipn [44]
The answer is 8 and yea it’s 2 steps first u have to remove the constant so u subtract 74-2=72 and 2-2=0. After u get rid of the constant u divide both sides by 9 basically 72/9 and 9/9 which is 8. So n is equal to 8 I hope this helped. I know it can be confusing
4 0
3 years ago
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