Answer
B
explanation
get the difference between the y valuesand divide it by the difference between the x values


Answer:
more the z-score more will be the extreme. therefore tallest man has high extreme
Step-by-step explanation:
Formula for z-score: 
where
X is height of tallest man
μ mean height
σ is standard deviation
z score for tallest is
z-score = 
similarly for shortest man
z-score = 
more the z-score more will be the extreme. therefore tallest man has high extreme
Answer:
a. I'm not sure if there's more to the question but I can't answer without knowing how many is the whole class
B. 12 boys
Answer:
rate of change = -32 feet/second
Step-by-step explanation:
h(t) = 64 – 16t2
t = time (seconds)
Look at the start of time where t = 0
h(t) = 64 - 16 * (0) * 2 = 64 feet
Then look at the specified time where t = 1.25 seconds
h(t) = 64 - 16 * (1.25sec) * 2 = 24 feet
rate of change = rate of change y / rate of change x
x = time, y = height
rate of change = (24 - 64) / (1.25 - 0) = -32 feet/second
It would probably be B because it said between -30 and 130