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Approximately 15% of peole are lefthanded. If two people are selected at random, what is the probability of the following events?
P(At least one is righthanded)?
Is this correct?
1P(none are RH)
so..1P(LH and LH)
1(.85)(.85)
=1.7225
=.2775...is this correct?
 10 months ago
 10 months ago
Approximately 15% of peole are lefthanded. If two people are selected at random, what is the probability of the following events? P(At least one is righthanded)? Is this correct? 1P(none are RH) so..1P(LH and LH) 1(.85)(.85) =1.7225 =.2775...is this correct?
 10 months ago
 10 months ago

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amistre64Best ResponseYou've already chosen the best response.1
should we assume that people can either be left or right handed, but not both?
 10 months ago

ViennaJadeBest ResponseYou've already chosen the best response.0
well I guess it's possible to be both
 10 months ago

ViennaJadeBest ResponseYou've already chosen the best response.0
but I've never had a question ask me that...
 10 months ago

amistre64Best ResponseYou've already chosen the best response.1
since no stats are given as to ambidextrous peoples ... P(l) = .15, P(r) = .85 at least one is P(l) lr + ll
 10 months ago

amistre64Best ResponseYou've already chosen the best response.1
at least one is right handed that is .... lr + rr
 10 months ago

ViennaJadeBest ResponseYou've already chosen the best response.0
Thank you! that makes sense.
 10 months ago

amistre64Best ResponseYou've already chosen the best response.1
the possible ways to choose 2 people are: ll .15*.15 lr .15*.85 rl .85*.15 rr .85*.85 at least 1 r in it is: lr + rl + rr does that sound right?
 10 months ago

ViennaJadeBest ResponseYou've already chosen the best response.0
yes it does. makes so much more sense. Thank you!
 10 months ago

ViennaJadeBest ResponseYou've already chosen the best response.0
wait so is the answer .85?
 10 months ago

amistre64Best ResponseYou've already chosen the best response.1
ll+lr+rl+rr = 1 lr+rl+rr = 1  ll since l = .15 ... 1  .15^2 = .9775
 10 months ago

ViennaJadeBest ResponseYou've already chosen the best response.0
oh sorry I forgot the one part..thank you!
 10 months ago
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