Find the exponential generating series for the number of functions f : a → b f: a→b where a = { 1 , 2 , . . , n } a={1,} and b = { 1 , 2 , . . , m } b={1,} such that the preimage set of every element of b b is at least size four, i. e., # f − 1 ( j ) ≥ 4 #f−1(j)≥4 for each j ∈ b j∈b.

the correct answer is b) histograms can be used to exhibit the shape of distributions. this is because histograms count the frequency of each possible answer, so one is able to see which results are more common and which are less common.

x = 12

y = 15

step-by-step explanation:

use formula for the circle a=3.14

step-by-step explanation: