The correct answer is C.
Booker T. Washington (1856-1915) was a leader of the African American community who tried to foster the involvement of black people in business activities. He was part of the last generation of black people born as slaves, so he tried to guide those and their descendants.
He claimed that all black people, men and women, had to learn both trade and academics. He worked towards the establishment of schools and trained teachers.
Answer:
By making our life easier for doing everything
Answer: Students´s "T" test is a type of deductive statistics. Is used for determine if there is a significant difference between the means of two groups.
DF: This refers to the difference between the average accounts of a single sample of individuals determined before treatment and after treatment.
Answer:
Cohort effect
Explanation:
When there is a variation in a characteristic of an area of study over a span of time which have other factors or characteristics same it is called cohort effects.
Here, the people who witnessed the shooting directly have been shown to have intense fear, anxiety, and depression which is known as the cohort effect. They all have the experience of witnessing the shooting in common.
