Let x equal the number of people selected at random that, Ask an Expert

Statistics

Let X equal the number of people selected at random that you must ask in order to find someone with the same birthday as yours. Assuming each day of the year is equally likely (and ignoring February 29)

(a)what is pmf of X?

(b)give the values of the mean, variance, and standard deviation of X?

(c)find P(X > 400) and P(X < 300).

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9449657

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Determine the critical values for a left-tailed test of a

Determine the critical? value(s) for a? left-tailed test of a population mean at the alpha α=0.01 level of significance based on a sample size of n=15.

Express courier service has found that the delivery time

Express Courier Service has found that the delivery time for packages is normally distributed with mean 14 hours and standard deviation 2 hours. a. What percent of the packages will be delivered in less than 18 hours? b. ...

The company financial officer was interested in the average

The company financial officer was interested in the average cost of PCs that had been purchased in the past six months. A random sample of the price of 10 computers was taken with the following results (mean = $3,213): $ ...

With a die being rolled the set of equally likely outcomes

With a die being rolled. The set of equally likely outcomes is? {1, 2? 3, 4? 5, 6}. Find the probability of getting a 10.

Suppose a stock has just paid a 44 per share dividend d0

Suppose a stock has just paid a $4.4 per share dividend (D 0 ). The dividend is projected to grow at 15% for the next three years, then 6% thereafter indefinitely. What should be the amount of dividend in four year ...

The monthly sales demand for a new product is uncertain but

The monthly sales demand for a new product is uncertain, but it is considered to be adequately described by a normal random variable with mean 50,000 units and variance 100,000,000. (a) A factory to manufacture the new p ...

Suppose you bought a five-year zero-coupon treasury bond

Suppose you bought a five-year zero-coupon Treasury bond with $ 1000 face value for $800. . Answer the following questions: (a) What is the yield to maturity on the bond? (b) Assume the yield to maturity on comparable bo ...

How can a graph or chart of data help you understand the

How can a graph or chart of data help you understand the results? What is a frequency table? Describe an example where a frequency table can be used in life.

You are offered the right to receive 3000 per year forever

You are offered the right to receive 3,000 per year? forever, starting in one year. If your discount rate is 3?%, what is this offer worth to? you? (round to the nearest dollar)

Medical researchers studying the effects of a low carb diet

Medical researchers studying the effects of a low carb diet versus a normal diet randomly assigned obese patients to one of the two diets. The patients were followed up with after several months and the amount of weight ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert