Answer:
c. σ = 1
Regardless of the original distribution, after standardizing to z-scores, the standard deviation is always 1.
Step-by-step explanation:
quizlet
Answer:
no he will make it home at 18:15
Step-by-step explanation:
B, Because to be a parallelogram it has to have two sides that are both parallel and congruent
Answer:
c
Step-by-step explanation:
Answer:
Speed = 0.1333 km/minute
Step-by-step explanation:
According to the graph :
At 10 minutes, it could be observed that the Distance moved started to reduce until distance moved reached 0 at 20 minutes. This could be interpreted as a case of negative acceleration (that is deceleration) whereby the distance covered started to decrease with time until the it rest at 0.
Speed during the last 30 minutes :
Speed = distance / time
Distance moved during this period :
Distance (from 0 to 4km)
Time = (from 30 to 60 minutes)
Speed = (4 - 0) / (60 - 30)
Speed = 4 / 30
Speed = 0.13333 km per minute
