Yeah the tickets is over-priced. Sure the question is not missing ?
Answer:
B) 5.5
Step-by-step explanation:
(3a-4b)²
= 9a² - 12ab + 16b²
Answer:
18
Step-by-step explanation:
Because when 18-5=13 x 2=26
Answer:
Option B) 9.1
Step-by-step explanation:
We are given the following in the question:
Average score = 490.4
Standard deviation = 63.7
Sample size, n = 49
Formula:

Putting values, we get,
Standard error =

Thus, the correct answer is
Option B) 9.1