Posted by **dee** on Friday, September 23, 2011 at 11:51pm.

Smitty's Bar and Grill has brand name recognition of 61% around the world. Assuming we randomly select 2 people. The assumptions of a Bernoulli process are met. What is the probability

a)exacatly 5 of the 12 recognize the name of Smitty's Bar and Grill?

b)5 or fewer recognize Smitty's Bar and Grill

c)more than 5 recognize Smitty's Bar and Grill?

d) no one in the sample ever heard of Smitty's Bar and Grill

- probabilty -
**Anonymous**, Saturday, September 24, 2011 at 6:25am
i think it is b) beacuase thet had only asked 2 people how can they get results by asking two people they have to ask more than 2 people to see.

- probabilty -
**Reiny**, Saturday, September 24, 2011 at 8:23am
I have a strong feeling that you have a typo, and that you meant to say,

"Assuming we randomly select 12 people. "

Please confirm.

- probabilty -
**Anonymous**, Saturday, September 24, 2011 at 8:32am
if it is 12 people she meant then the answer would be c)

- note to "anonymous" -
**Reiny**, Saturday, September 24, 2011 at 8:34am
These are not multiple choice answers, they are individual questions

- To dee , probabilty -
**Reiny**, Saturday, September 24, 2011 at 8:40am
a) prob that exactly 5 out of 12 will recognize

= C(12,5)(.61)^5(.39)^7

= appr 0.0918

b)

prob = C(12,0)(.61)^0 (.39)^12 + C(12,1)(.61)^1 (.39)^11 + ... + C(12,5)(.61)^5 (.39)^7

c) prob = 1 - (answer to b)

d) prob = C(12,0)(.61)^0 (.39)^12

= .00001238

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