Approximate the Following Binomial Probabilities by the Use of Normal $\le$

question 38

Essay

Approximate the following binomial probabilities by the use of normal approximation.
a.P(X = 18,n = 50,p = 0.3)
b.P(X $\le$ 15,n = 50,p = 0.3)
c.P(X $\le$ 12,n = 50,p = 0.3)
d.P(12 $\le$ X $\le$ 18,n = 50,p = 0.3)

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Definitions:

Government Relations

Organization-to-government communications in which organizations communicate with government agencies and elected officials.

Public Affairs

Activities aimed at influencing or managing relations with governments at all levels and building and maintaining a positive public image for a company or organization.

Initiates Contact

The act of making the first move to establish communication or interaction, often a crucial step in sales, networking, or dispute resolution.

Military Public Affairs Officers

Dedicated professionals in the military responsible for managing communication between the military, the media, and the public.