A researcher recorded the number of cows on each farm in the county.
Number of cows Number of farms
12 3
26 1
33 2
39 1
42 3
X is the number of cows that a randomly chosen farm has. Write the probability distribution of X in the table below.
Write each probability as a decimal.
X P(X)
12 0.3
26 ?
33 0.2
39 0.1
42 0.3

Question

A researcher recorded the number of cows on each farm in the county.
Number of cows	Number of farms
12	                                  3
26	                                  1
33	                                   2
39	                                   1
42	                                   3
X is the number of cows that a randomly chosen farm has. Write the probability distribution of X in the table below.
Write each probability as a decimal.
X	P(X)
12	0.3
26	?
33	0.2
39	0.1
42	0.3

fortytherapper · Answer

Do you see the pattern? When farms is 3,  P(X) is .3, when its 2 it's .2