This is an example of observational study, because the biologist is not interfering or interacting with the subjects of study but just watching and registering data (recording with cameras).
The biologist is not conducting an experiment because (he is not setting up special conditions to register different responses to drive conclusions), and the biologist is not making any survey (questionnaires for example).
Answer: observational study
Answer:
B
Step-by-step explanation:
What is required is the probability of selecting one orange and one black kitten.
outcomes ( 1 O and 1B) = 4C1 * 5C1
Total outcomes = 9C2
Note: the order of color does not matter it is simply a matter of selection hence only combinations are made NOT permutations.
P (1O and 1B) = outcomes ( 1 O and 1B) / Total outcomes
P (1O and 1B) = (4C1 * 5C4) / 9C2 = 0.5556
Answer:
*12 and *6
Step-by-step explanation:
5*12/6*12=10*6/10*6
60/72=60/72
60=60
true
Answer:
D
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = - 3, thus
y = - 3x + c ← is the partial equation
To find c substitute (2, - 5) into the partial equation
- 5 = - 6 + c ⇒ c = - 5 + 6 = 1
y = - 3x + 1 → D
