Answer: Doppler Red-Shift Evidence
The Doppler red-shift of light observed from distant stars and galaxies gives evidence that the universe is expanding (moving away from a central point). This allows for Big Bang Theory, because after a “bang” occurs all of the matter moves away from the point of origin.
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For calculating mean value, add up all of the values then divide by the number of them. 815/9 is about 90.6
<h3>What is mean value?</h3>
The mean refers to the average of a set of values. The mean can be computed in a number of ways, including the simple arithmetic mean (add up the numbers and divide the total by the number of observations), the geometric mean, and the harmonic mean.
Moreover, the mean can be used to represent the typical value and therefore serves as a yardstick for all observations. For example, if we would like to know how many hours on average an employee spends at training in a year, we can find the mean training hours of a group of employees.
Hence, the mean can be calculated only for numeric variables, no matter if they are discrete or continuous. It's obtained by simply dividing the sum of all values in a data set by the number of values.
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I would say yes because you need to be creative with an scientific experiment but still follow the rules of the experiment or else it won't be accurate. Be creative and think of something that is possible to investigate or test. I hope that makes sense and helps
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Answer:
They did not have accurate data and information.
