James Watson and Francis Crick
I think this is the answer .
Answer:Type A behavior pattern
Explanation:Type A behavior pattern is characterized by intense feeling of wanting to succeed ,being highly competitive , very impatient and get angry easily , always work with a rush to complete thing in time and feel like there is no time to waste. Their need and desperation for success may make them hostile towards their colleagues because they don't want anyone to get on their way.
Answer:
degree of freedom is 2
Explanation:
We have here,
Physical activity classified as "positive attitude" or "negative attitude"
General activity level was classified as active, mildly active, and inactive.
Degree of freedom (Row-1)(Column -1) = (2-1)(3-1)=2
Therefore degree of freedom is 2