Answer:
Two-sample t test.
Because we have two different sections and we want to see if exists difference between the two averages. Both sections are independent so it can be considered as different samples.
Step-by-step explanation:
Two-sample t test.
Because we have two different sections and we want to see if exists difference between the two averages. Both sections are independent so it can be considered as different samples.
If we don't know the population deviations, so for this case is better apply a two sample t test to compare means, and the statistic is given by:
(1)
t-test: "Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other".
2x = -11 + 9
2x = -2
x= 2/2
x= 1
Answer:
if the subway is an auto mobile, then b , if not then c
Step-by-step explanation:
hope this helps, if not lets talk in the comments
BRAILNLEST PLZZZZZ
The answer is -5(6x-1) /6
Supplementary angles add up to 180°, meaning that the supplement of 25° can be added to it to get 180°.
To find the supplement, subtract 25° from 180°.
180° - 25° = 155°