Question

Problem: The Danger Panda roller coaster requires that riders be at least 1.6 meters tall and under 1.9 meters tall. Return True iff a person, whose height in meters is given as the argument, is allowed to ride the Danger Panda.


My solution(code): def allow_rider(height):
"""(float) -> bool
Return True iff height is within the height parameters.
Maximum Height of rider: 1.9 meters
Minimum Height of rider: 1.6 meters

allow_rider(1.7)
True

allow_rider (1.4)
False

"""
if (height >= 1.6 and height <= 1.9):
return True
else:
return False

Answer 1

Teachers comment: The following test cases failed: |
| test_allow_rider_hair_too_tall - IncorrectReturnValue |
| Think about what happens with values near 1.9.

Answer 2

could somebody help me understand waht this means

Answer 3

and what i have to do to correct it

Answer 4

def rider(height):
return (height >= 1.6) && (height < 1.9);

There's no problem. The thing to know is that they value has to be LESS THAN 1.9, so if you use the less than operator its all good.

The problem is that it says "if and only if they are at least 1.6 meters and UNDER 1.9 meters". "Under 1.9 meters" implies that it does not include 1.9 meters, but it will include 1.8999999...

So that's what you want, I think. You could write it somewhat more concisely as such:

def rider(height):
return 1.6 <= height < 1.9

Answer 5

alright thanks, if i messaged you through the other message thing do you think youd be able to help me with 2 more questions?

Answer 6

i dont know.. maybe? i'll try;)

Answer 7

alright thanks so much
ill inbox them to you right now

Answer 8

medal me first? ;)

Answer 9

ye sure anything

Answer 10

i sent the question to you