Question 861857: A recent study found that 80% of all people over 60 years of age wear glasses. If a random sample of 6
people over 60 years of age is selected, find these probabilities.
a. Exactly 4 people will wear glasses.
b. At most 2 people will wear glasses.
c. At least 2 people will wear glasses.
If 60% of the children had German measles by the time they were 12 years old, find these
probabilities for a sample of 8 children.
a. At least 5 have had German measles.
b. Exactly 7 have had German measles.
c. More than 3 have had German measles.
Cumulative density function (CDF) is defined as: CDF(X=x)=P(X<=x), plot the CDF of X where X follows a standard normal distribution for X=-3, -2, …, +2, +3.
Answer by ewatrrr(24785)   (Show Source):
You can put this solution on YOUR website! p = .8 and n = 6
people over 60 years of age is selected, find these probabilities.
a. Exactly 4 people will wear glasses. binompdf(6,.8,4)
b. At most 2 people will wear glasses. binomcdf(6, 8,2)
c. At least 2 people will wear glasses. 1 - bin0mcdf(6,.8,1)
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