Suppose that y is a random variable having a normal distribution wit mean equal to 250 and a standard deviation equal to 10. a. Show that the event y< 260 has the same probability as z< 1, where zdenote the random variable with standard normal distribution.b. Convert the event y> 230 to the z − score equivalentc. Find P(y<260) and P(y>230)
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Suppose that y is a random variable having a
a. Show that the
denote the random variable with standard normal distribution.
b. Convert the event y> 230 to the z − score equivalent
c. Find P(y<260) and P(y>230)
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