The telephone company kept track of the calls for the correct time during a 24-hour period for two weeks. The?
Saturday, May 22nd, 2010 at
3:11 pm
results are shown in the table.
Number
of Calls Frequency
59 1
60 2
61 3
62 4
63 2
64 5
65 1
Total: 14
Give the probability distribution. I have the answer is right below, but I need to know how to arrive to it. Thanks.
Number 59 60 61 62 63 64 65
Probability .07 .14 .21 .29 .14 .36 .07
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Tagged with: 24hour • calls • company • correct • during • kept • period • Telephone • time • track • weeks.
Filed under: Telephone Table FAQ
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there is inconsistency in ur data, may be a typo
if u add up the frequencies, it comes to 18 , not 14
anyway, the METHOD is to add up all the frequencies
and arrive at the probability by [individual frequency / total frequency]
if the total frequency of 18 is correct, the probabilities wd b
1/18 , 2/18 , 3/18 , 4/18 / 2/18 , 5/18 & 1/18 respectively
convert them to decimals