In the program below, which variable has the same scope as strA? def usernameMaker (strFirst, strLast):
return strFirst + strLast[0]

def passwordMaker (strA, numC):
if len(strA) > 4:
answer = dogName[0:3]
return answer + str(numC)
else:
return 'xk&' + str(numC)

# the main part of your program that calls the function
username = usernameMaker ('Chris', 'Smith')
dogName = 'Sammy'
favoriteNumber = 7
password = passwordMaker (dogName, favoriteNumber)
print ("Username is ",username)
print ("Password is ",password)

Question: StrA and have the same scope.
StrLast, NumC, StrFirst, favoriteNumber

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?

Which analyst position analyzes information using mathematical models to business managers make decisions?

Atype of researcher who uses computers to make sense of complex digital data