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Find the expected number of games that you play. Find the expected number of games that you lose.
There are 10 employees in a particular division of a company. Their salaries have a mean of $80,000, a median of $60,000, and a standard deviation of $22,000. The largest number on the list is $100
At one time, the cholesterol levels for women aged 20 to 34 follow an approximately normal distribution mean 185 milligrams per deciliter (mg/dl) and standard deviation 39 mg/dl. What proportion of
The lifetimes (in years) of a certain kind of electronic component is a random variable having probability density function
We have a system consisting of four components. Each component functions or fails, each independently of the others. The entire system functions if A and B function, along with at least one of C or
The time to failure of a battery in hours of a personal handheld music device follows an exponential distribution. The expected battery life is 2000 hours.
A survey of 50 randomly selected people found the following blood types. createa the bar chart that best displays the relative frequencies.
The table below shows the price of a volatile stock from the months January 1999 through December 1999 as determined by the closing price on the last trading day of the month. The price is rounded t
A professional tennis player hit 100 balls, and their speeds were recorded. The results are shown in the frequency distribution above. Using the information, construct a cumulative frequency table f
Concepts and applications. Find the Range and Standard Deviation
Describing Distribution the reaction times of 500 randomly selected drivers, measured under standard conditions. a. How many modes would you expect for the distribution?
Create a hypothetical one hundred thousand table illustrating this situation, where the row categories are disease (yes, no) and the column categories are test results (positive, negative).
If a blue marble is drawn, it is placed back in the box along with all of the (necessarily red) marbles in the holding pan. Aside from the above, the rules/law is according to the usual random selecti
The cutoff for mathematics scores is 550. How many Texas men had a qualifying score? and What score defines the top 10% of Texas women's scores on the math SAT?
A rehabilitation center researcher was interested in examining the relationship between physical fitness prior to surgery of persons undergoing corrective knee surgery and the time required in physi
In a study to investigate the effect of the color paper (blue, green, orange) on response rates for questionnaires distributed by the "windshield method" in supermarket parking lots, four supermarke
A multiple choice exam has 10 questions. Each question has 4 possible answers, of which one is correct. A student knows the answers to 3 of the questions and answers them correctly. The student gue
A report from the U.S. Department of Justice gave the following percent increases in federal prison populations in 20 northeastern and midwestern states during 1999. 5.9, 1.3, 3.0, 5.9, 4.5, 5.6, 2
Two people are going from Seattle to Portland. Alice has 50% chance of arriving at 5:00 and a 50% chance of arriving at 6:00. Bob's arrival time is independent of Alice's. The number of minutes aft
With probability 0.4, stocks are worth $18, commercial bonds are worth $15, and Government bonds are worth $9.With probability 0.4, stocks are worth $11, commercial bonds are worth $10, and Governm
So if you have a variance of 75 for a class average with a standard deviation of +/- 15. What grade will 96% of the class and 68% of the class' grades fall? If you can show some work also, I would
A hot dog vendor provides onions, relish, mustard, ketchup, Dijon ketchup, and hot peppers for your hot dog. How many variations of hot dogs are possible using (a) one condiment? (b) Two condiments
A hockey team has 6 forwards, 4 defensemen, and 2 goalies. At any time, 3 forwards, 2 defensemen, and 1 goalie can be on the ice. How many combinations of players can a coach put on the ice?
A dinner party is attended by four men and four women. How many unique ways can the eight people sit around the table? How many unique ways can the people sit around the table with men and women al