The answer is C: multiply by 2
Answer:
2(t) or 2 * t
Step-by-step explanation:
Both of those are multiplying 2 and t, which is also what 2t means.
Can we see the patern please
Missing question: How many executives should be surveyed?
Solution:
Mean = 13 hours
SD = 3 hours
Confidence level = 95%
Mean viewing time within a quarter of an hour = 0.25 = 1.96*3/sqrt (N)
Where N = Sample population
N = {(1.96*3)/0.25}^2 = 553.19 ≈ 554
Therefore, 554 executives should be surveyed to yield such results.
We have 3*4+2, or 14, by substituting in for x.
