Sally Kristen Ride, she joined NASA in 1978 and became the first American woman in space in 1983.
Answer:
during the Renaissance, Leonardo da Vinci was drafting designs for flying machines, parachutes, automobiles, and modern weapons. Today we have many flying machines, parachutes, automobiles, and weapons.
Explanation:
Answer:
Conduct a second survey
Explanation:
Mean age is the average age in a particular group of people. It is used in statistics to compare a group of people with another one.
The purpose of the mentioned survey was to compare the level of relationship satisfaction between married and non-married couples. For the survey to be valid, the average (mean) age in these two groups should be the same. People behave differently at different stages in their lives, some may be satisfied with their relationship at 23 and dissatisfied at 30. The age gap between the two groups here is to great to reach any plausible conclusions. You should conduct a second survey with the same or similar age groups.
Raja is using the "Life-course" perspective.
The life course perspective which is also
known as life course theory or for short LCT, alludes to perspective
including multidisciplinary views to comprehend the psychological, material and
social health of people.