Project #12457 - stat

 

 

 

 

 

 

 

 

x

0

1

2

3

4

5

p(x)

0.0010

0.0146

0.0879

0.2637

0.3955

0.2373

 

 

 

 

 

 

 

 

 

2. Five males with a particular genetic disorder have one child each. The random variable x is the number of children among the five who inherit the genetic disorder. Determine whether the table describes a probability distribution. if it does, find the mean and standard deviation..

 

Find the mean of random variable x. select the correct choices below and if necessary, fill in the answer box to complete your choice.

 

3. Let the random variable x represent the number of girls in a family with 3 children .Assume the probability of a child being a girl is 0.3. The table on the right describes the probability of having x number of girls. Determine whether the table describes a  probability distribution. If it does the mean and standard deviation. Is it unusual for a family of three to have three girls?

 

Find the mean of the random variable. Select the correct choices below and if necessary, fill in the answer box to complete your choice.

 

 

x

p(x)

 

0

0.343

 

1

0.441

 

2

0.189

 

3

0.027

 

 

 

 

 

 

 

 

 

 

Find the area of the shaded region. the graph to the right depicts IQ scores of adults and those scores are normally distributed with mean of 100 and standard deviation of 15.

 

By the way the shaded area is 90...

 

90-100/15 what is Z

Subject Mathematics
Due By (Pacific Time) 09/15/2013 12:00 am
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