Answer: B. Blind experiment
Step-by-step explanation: While conducting an experiment, experimenters may aim to eliminate factors which are very likely to cause bias and hence affect the veracity of the study. In the scenario above, the participants of the study (coworkers) were only provided with samples of the two coffee types without any of them knowing if it was the coffee they drank now or the new coffee brand. Hence, withholding such information from the participant is a technique in experimenting called blinding. Because, the information could affect the outcome and hence objective of the study as the participants were already partial towards the present coffee being consumed.
Answer:
yes, it is possible to have the sum of square roots equal the square root of the sum of the radicands.
If either a or b equals zero, then the sums would be the same.
Since the square root of 0 is 0, adding it to a given radical would not change the radical. Also adding zero to the radicand would not change its value.
these are the right answer for E2020
Answer:
0.75°C
Step-by-step explanation:
Person A Person B Person C
-3 4 8
-1 -4 -2
0 2 5
2 -3 1
To get Fatima mean value, we have to add all the given values together
= - 3 + 4 + 8 - 1 - 4 - 2 + 0 + 2 + 5 + 2 - 3 + 1
= 9
Estimate is 9 deg above Actual Temperature in 12 readings
The formula for our Mean Value will be, the added values divided by actual temperatures
Added values = 9
Actual temperature = 12
Mean value = 9 ÷ 12 = 0.75°C above actual Temperature
Acute with angles at 89 or smaller, Right with angles at 90 exact, and obtuse with angles with 91 and above
