SOLUTION: The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months.
x......P (X=x)
0
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x......P (X=x)
0
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Question 1083281: The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months.
x......P (X=x)
0......0.55
1.00......0.15
2.00......0.10
3.00......0.10
4.00......0.04
5.00......0.03
6.00......0.03
Find P(X ≤ 2). Place your answer, rounded to two decimal places in the blank. For example, 0.56 would be a legitimate entry. Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website! Define
A = probability that X is equal to 0 = 0.55
B = probability that X is equal to 1 = 0.15
C = probability that X is equal to 2 = 0.10
D = probability that X is equal to 3 = 0.10
E = probability that X is equal to 4 = 0.04
F = probability that X is equal to 5 = 0.03
G = probability that X is equal to 6 = 0.03
Using the probabilities defined above, we can say
The final answer is 0.80
Note: if you wish, you can also write it like this
but in my opinion it's a bit clunky due to all the equal signs. The letter notation might be easier to read.
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