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Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals).
a. P(z -1.0)
b. P(z -1.0)
c. P(z -1.5)
d. P(z -2.5)
e. P(-3 < z 0)
suppose 80 of the college football fans root for the home team. if 400 fans who attended a college football game last
Let sample s approximate population sigma. How come the t- table in the AP booklet has degrees of freedom entries way past 30 ??? What am I missing??
We have a card game with 52 cards, consisJng of 4 suits (Dia, Clu, Hea, Spa), the cards are numbered Ace-10, then J,Q, K in each suit.
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p- value.
Assume that there is no available information that can be used to estimate the percentage of households in which a vehicle is owned.
when an opinion poll calls residential telephone numbers at random only 20 of the calls reach a live person. you watch
on average 9 babies are born per 24-hour day at a hospital in indianapolis.a what is the probability that at least one
find the probability density function for a normal random variable with a mean of 15 and a standard deviation of
In large accounting firm, the proportion of accountants with MBA degrees and at least five years of professional experience is 0.75 times the proportion of accountants with no MBA degree and less than 5 years of professional experience.
Normal approximation to the Binomial distribution - Evaluate the probability that at least 195 of the students are female.
Two events, A and B are equally likely. The chance that either A or B happens on a given trial of an experiment is 0.70, while the chance that they both happen on a given trial is only 0.40.
What is the probability of this actually happening?
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