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Create the Venn diagram:
A - you work for an insurance company. 80% of your company's staff is sales force and 70% of your company's sales is force is male. in your company as whole , 60 % of the staff is male .
1-Create the Venn diagram for this data (unite draw two circles, on represent male and the other represent on the sale force.
2- what portion of your company's staff is male and on the sales force?
3- What portion of your company's staff is female and on the sales forces?
B About 55% of emergency room visits are unnecessary, assuming each emergency room visit is independent. (Hint: first define the random variable x then write the objective of each question in terms of x.
1 if you randomly select 15 patients from those visiting the emergency department what is the chance that all of them need tobe in the emergence.
2 What is expected number from the 15 randomly selected patients, who do not need to be in the emergency room and what is the standard deviation of the number?
3 Suppose the distribution of unnecessary emergency room visits can be approximated by normal distribution what is the probability that at least two of them need be in the emergency room?
Binomial Distribution Binomial distribution was discovered by swiss mathematician James Bernonulli, so this distribution is called as Bernoulli distribution also, this is a d
If the sample size is less than 30, then we need to make the assumption that X (the volume of liquid in any cup) is normally distributed. This forces (the mean volume in the sam
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The decision maker ranks lotteries according to the utility function (i) State the independence assumption. Does this decision maker satisfy it? (ii) Is this decision ma
Related Positional Measures Besides median, there are other measures which divide a series into equal parts. Important amongst these are quartiles, deciles and percentiles.
simplified formulae
Simulation When decisions are to be taken under conditions of uncertainty, simulation can be used. Simulation as a quantitative method requires the setting up of a mathematical
Geometric Mean is defined as the n th root of the product of numbers to be averaged. The geometric mean of numbers X 1 , X 2 , X 3 .....X n is given as
Deviation Measures The drawback of the range as a measure of dispersion is that it takes into account the values of only two data points - the largest and the smallest. One
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