# Author name: Sona Chhetry

# I have neither given nor received unauthorized assistance on

# this assignment. I did not fabricate the answers to my

# survey questions.

# $0)$ Questions and Results

SURVEY$\_$QUESTION$\_1=$ "How many hours of sleep do you get on average?"

SURVEY$\_$RESULTS$\_1=[7,8,5,6,7,7,6,8,7,5]$

SURVEY$\_$QUESTION$\_2=$ "How many cups of coffee do you drink per day?"

SURVEY$\_$RESULTS$\_2=[2,3,1,2,3,2,1,3,2,2]$

# $1)$ count

def count$($numbers$)$:

result $=0$

for $\_$ in numbers:

result $+=1$

return result

# $2)$ summate

def summate$($numbers$)$:

result $=0$

for num in numbers:

result $+=$ num

return result

# $3)$ mean

def mean$($numbers$)$:

if not numbers:

return None

total, count $=0,0$

for num in numbers:

total $+=$ num

count $+=1$

return round$($total $/$ count, $2)$

# $4)$ maximum

def maximum$($numbers$)$:

if not numbers:

return None

result $=$ numbers$[0]$

for num in numbers:

if num $>$ result:

result $=$ num

return result

# $5)$ minimum

def minimum$($numbers$)$:

if not numbers:

return None

result $=$ numbers$[0]$

for num in numbers:

if num $<$ result:

result $=$ num

return result

# $6)$ median

def median$($numbers$)$:

if not numbers:

return None # Return None for an empty list

sorted$\_$numbers $=$ sorted$($numbers$)$

mid$\_$index $=0$

for $\_$ in sorted$\_$numbers:

mid$\_$index $+=1$

mid$\_$index $//=2$

count $=0$

for $\_$ in sorted$\_$numbers:

count $+=1$

if mid$\_$index $*2==$ count:

return round$(($sorted$\_$numbers$[$mid$\_$index $-1]+$ sorted$\_$numbers$[$mid$\_$index$])/2,2)$

else:

return round$($sorted$\_$numbers$[$mid$\_$index$],2)$

# $7)$ square

def square$($numbers$)$:

result $=[]$

for num in numbers:

result.append$($num $**2)$

return result

# $8)$ standard$\_$deviation

def standard$\_$deviation$($numbers$)$:

if count$($numbers$)<2$:

return None

sum$\_$values, sum$\_$squared$\_$values $=0,0$

for num in numbers:

sum$\_$values $+=$ num

sum$\_$squared$\_$values $+=$ num $**2$

n $=$ count$($numbers$)$

stdev $=(($sum$\_$squared$\_$values $-($sum$\_$values $**2)/$ n$)/($n $-1))**0\mathrm{.}5$

return round$($stdev$,2)$

# Additional code for survey questions and results

SURVEY$\_$QUESTION $=$ "How many hours of exercise do you do per week?"

SURVEY$\_$RESULTS $=[3,4,2,5,3,4,3,2,4,5]$

if $\_\_$name$\_\_=="\_\_$main$\_\_"$:

print$("$We asked", count$($SURVEY$\_$RESULTS$\_1),$ "people the following question."$)$

print$(\text{'}"\text{'}+$SURVEY$\_$QUESTION$\_1+\text{'}"\text{'})$

print$("$Here are the statistical results:"$)$

print$("\backslash$tCount:$",$ count$($SURVEY$\_$RESULTS$\_1))$

print$("\backslash$tSummate:$",$ summate$($SURVEY$\_$RESULTS$\_1))$

print$("\backslash$tMean:$",$ mean$($SURVEY$\_$RESULTS$\_1))$

print$("\backslash$tMedian:$",$ median$($SURVEY$\_$RESULTS$\_1))$

print$("\backslash$tMaximum:$",$ maximum$($SURVEY$\_$RESULTS$\_1))$

print$("\backslash$tMinimum:$",$ minimum$($SURVEY$\_$RESULTS$\_1))$

print$("\backslash$tSquare:$",$ square$($SURVEY$\_$RESULTS$\_1))$

print$("\backslash$tStandard Deviation:", standard$\_$deviation$($SURVEY$\_$RESULTS$\_1))$

print$("$

We asked", count$($SURVEY$\_$RESULTS$\_2),$ "people the following question."$)$

print$(\text{'}"\text{'}+$SURVEY$\_$QUESTION$\_2+\text{'}"\text{'})$

print$("$Here are the statistical results:"$)$

print$("\backslash$tCount:$",$ count$($SURVEY$\_$RESULTS$\_2))$

print$("\backslash$tSummate:$",$ summate$($SURVEY$\_$RESULTS$\_2))$

print$("\backslash$tMean:$",$ mean$($SURVEY$\_$RESULTS$\_2))$

print$("\backslash$tMedian:$",$ median$($SURVEY$\_$RESULTS$\_2))$

print$("\backslash$tMaximum:$",$ maximum$($SURVEY$\_$RESULTS$\_2))$

print$("\backslash$tMinimum:$",$ minimum$($SURVEY$\_$RESULTS$\_2))$

print$("\backslash$tSquare:$",$ square$($SURVEY$\_$RESULTS$\_2))$

print$("\backslash$tStandard Deviation:", standard$\_$deviation$($SURVEY$\_$RESULTS$\_2))$

print$("$

We asked", count$($SURVEY$\_$RESULTS$),$ "people the following question."$)$

print$(\text{'}"\text{'}+$SURVEY$\_$QUESTION$+\text{'}"\text{'})$

print$("$Here are the statistical results:"$)$

print$("\backslash$tCount:$",$ count$($SURVEY$\_$RESULTS$))$

print$("\backslash$tSummate:$",$ summate$($SURVEY$\_$RESULTS$))$

print$("\backslash$tMean:$",$ mean$($SURVEY$\_$RESULTS$))$

print$("\backslash$tMedian:$",$ median$($SURVEY$\_$RESULTS$))$

print$("\backslash$tMaximum:$",$ maximum$($SURVEY$\_$RESULTS$))$

print$("\backslash$tMinimum:$",$ minimum$($SURVEY$\_$RESULTS$))$

print$("\backslash$tSquare:$",$ square$($SURVEY$\_$RESULTS$))$

print$("\backslash$tStandard Deviation:", standard$\_$deviation$($SURVEY$\_$RESULTS$))$

$>>>\%$Run test$\_$my$\_$solution.py

$...$F$......$

$======================================================================$

FAIL: test$\_$median $(\_\_$main$\_\_.$TestComponents$)$

median

$----------------------------------------------------------------------$

Traceback $($most recent call last$)$:

File $"/$Users$/$sonachhetry$/$Downloads$/$cs$1064-$w$22-$p$3-$survey$\_$stats$/$test$\_$my$\_$solution.py$",$ line $202,$ in test$\_$median

self.generic$\_$test$($student$\_$main.median$)$

File $"/$Users$/$sonachhetry$/$Downloads$/$cs$1064-$w$22-$p$3-$survey$\_$stats$/$test$\_$my$\_$solution.py$",$ line $172,$ in generic$\_$test

self.wrong$\_$result$($args$,$ expected$\_$result, actual$\_$result$)$

File $"/$Users$/$sonachhetry$/$Downloads$/$cs$1064-$w$22-$p$3-$survey$\_$stats$/$test$\_$my$\_$solution.py$",$ line $167,$ in wrong$\_$result

self.assertAlmostEqual$($expected$,$ actual, places$=$TOLERANCE, msg$=$msg$)$

AssertionError: $1!=0\mathrm{.}0$ within $2$ places $(1\mathrm{.}0$ difference$)$ :

Incorrect value returned for $`$media