SOLUTION: I need help with this question" Express the event �worked out at least once� in terms of X. What is the probability of this event? Here is the data: x represents the number o

Question 364117: I need help with this question"
Express the event �worked out at least once� in terms of X. What is the probability of this event?
Here is the data:
x represents the number of days people worked out for the week
0.68 for x=0
0.05 for x=1
0.07 for x=2
0.08 for x=3
0.05 for x=4
0.04 for x=5
0.01 for x=6
0.02 for x=7
I said that there is a 1 in 7 chance that someone worked out one day during the week because the numbers add up to one. Is this correct?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Express the event �worked out at least once� in terms of X. What is the probability of this event?
Here is the data:
x represents the number of days people worked out for the week
0.68 for x=0
0.05 for x=1
0.07 for x=2
0.08 for x=3
0.05 for x=4
0.04 for x=5
0.01 for x=6
0.02 for x=7
I said that there is a 1 in 7 chance that someone worked out one day during the week because the numbers add up to one. Is this correct?
-----
P(worked at least once) = 1 - P(did not work on any of the 7 days)
= 1 - 0.68 = 0.32
===========================
Cheers,
Stan H.
====================
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