The correct answer is D. Have other scientists repeat the procedure and obtain the same results.
Explanation:
One of the most accurate ways to validate the results of an experiment is to allow peers (other scientists) to review the experiment and repeat it, which is known as replication. This process is required to make sure the results are accurate because if the experiment is repeated by a different scientist and the results are different this shows the data is not consistent and therefore the results are invalid. Moreover, inconsistency or lack of replication can occur due to incorrect processes or bias by the scientist.
According to this, the next step in this situation is to "have other scientists repeat the procedure and obtain the same results".On the other hand, repeating the experiment but changing one of the variables or the procedures is not a correct step because this will change the essence of the experiment and lead to different results.
Answer:
Well you see, the answer is increases.
Explanation:
Thank you, next.
Answer: d) the median speed in race a is about 153 miles per hour, and the median speed in race b is about 145 miles per hour.
Explanation:
The whole question is written below:
The box plots show the average speeds, in miles per hour, for the race cars in two different races (figure attached)
. Which statement compares the median speeds for the data in the two box plots?
a) the median speed in race a is about 142 miles per hour, and the median speed in race b is about 140 miles per hour.
b) the median speed in race a is about 120 miles per hour, and the median speed in race b is about 125 miles per hour.
c) the median speed in both races is about 165 miles per hour.
d) the median speed in race a is about 153 miles per hour, and the median speed in race b is about 145 miles per hour.
Firstly, let's explain how to read a box plot (as the shown in the second figure):
- The outer extreme points are the minimum and maximum values, respectively.
- The inner extreme points are the first quartile (also called lower median) and the third quartile (also called upper median).
- The point in the middle is Median.
So, according to this, the median for race a (top plot) is between 150 and 155, and the median for race b (bottom plot) is 145.
Hence, among the given options the correct is:
<h2>
d) the median speed in race a is about 153 miles per hour, and the median speed in race b is about 145 miles per hour.</h2>