Question

Knowing your blood type is important not only because it
determines who you can donate blood to but also who you can receive
blood from. The second most common blood type in Canada is A
positive and 36 percent of Canadians share this blood type.
The least common blood type is AB negative and only 0.5
percent of Canadians have this blood type. Suppose a random sample
of 100 Canadian donors has been chosen at random. In this sample,
let X be the number of donors with A positive
blood, and let Y be the number of donors with AB
negativeblood. |

(a) | Find the mean of X. |

(b) | Find the variance of X. |

(c) | Use either the normal or the Poisson approximation, whichever
is appropriate, to find the simplest estimate for the probability
P(X ≥ 41). |

(d) | Find the mean of Y. |

(e) | Find the variance of Y. |

(f) | Use either the normal or the Poisson approximation, whichever
is appropriate, to find the simplest estimate for the probability
P(Y ≥ 2). |

Answer #1

Pls upvote...!!!

Blood type AB is found in only 3% of the population.† If 300
people are chosen at random, find the probability of the following.
(Use the normal approximation. Round your answers to four decimal
places.)
(a) 5 or more will have this blood type
(b) between 5 and 10 will have this blood type

The proportion of individuals with an Rh-positive blood type is
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What are the mean and standard deviation of p̂, the
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deviation to four decimal places.)
mean standard deviation
(b)
Is the distribution of p̂ approximately normal? Justify
your answer.
Since np = and nq
= are ---Select--- not both
both greater than 5, the normal
approximation ---Select--- is not
is appropriate.
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MATHEMATICS
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