2f54bb58c37528842722e6125c79f5eb
2019.43
wyzant.com
2f54bb58c37528842722e6125c79f5eb
x      y
-3     3
-1     1
0      0
1      1
 
f(-1) = 
 
evaluate each function for the given value of x?
wyzant.com
2019.43
according to the table of values given and if i assume that y = f(x), the y(-1) = f(-1) = 1.
9b02ab491b133c82783c0e15312c1657
2021.39
wyzant.com
9b02ab491b133c82783c0e15312c1657
in how many ways can a member of a hiring committee select 3 of 12 job applicants for further consideration? 
binomial distribution 
wyzant.com
2021.39
this is what is known as a "combination" (versus "permutation") since the order in which the 3 people are selected does not matter. if each job were unique, then you would use a permutation (which is always a larger number). the formula for combinations is sample space (factorial) divided by the product of the number being selected (factorial) and the difference of the two (factorial); i.e, 12!/(3!*9!) =220
12!/(9!3!)= 12 x 11 x 10 / 6= 220