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If you could stop time and live forever in good health, what age would you pick? Answers to this question were reported in a USA Today Snapshot. The average ideal age for each age group is listed in the following table; the average ideal age for all adults was found to be 41. Interestingly, those younger than 30 years want to be older, whereas those older than 30 years want to be younger.
Age Group Ideal Age18 - 24 2725 - 29 3130 - 39 3740 - 49 4050 - 64 4465 + 59
Age is used as a variable twice in this application.
a. The age of the person being interviewed is not the random variable in this situation. Explain why and describe how "age" is used with regard to age group.
b. What is the random variable involved in this study? Describe its role in this situation.
c. Is the random variable discrete or continuous?
A cardboard box manufacturer wishes to make open boxes from rectangular pieces of cardboard with dimensions 10 in. by 17 in. by cutting equal squares from the four corners and turning up the sides.
questionnbsplet a be an n times n matrix with eigen values 1 2 middot middot middot n. prove there are 2nn different
consider the following information and then calculate the required rate of return for the scientific investment fund
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Solving probability problems based on combinations
A box contains four balls, numbered 1 through 4. One ball is selected at random from this box. Let X1 = 1 if ball 1 or ball 2 is drawn
A mortgage at 9% interest compounded monthly with a monthly payment of $1125 has an unpaid balance of $10,000 after 350 months. Find the unpaid balance after 351 months.
in a left-skewed distribution, where is the median in regard to the mean? Is it to the left of the mean or to the right of the mean?
find the measure of the central angle if the lenght of the arc is 29.21 and the circumference is 40.44.
The length of the shadow of a 200 foot tower is 70 feet. find the angle of elevation of the sun.
Two tracking stations are on the equator 124 miles apart. A weather balloon is located on a bearing of N 34deg E from the western stations and on a bearing of N 16deg E from the easter station. How far is the balloon from the western station?
where is its height above the ground and is the horizontal distance traveled in meters. Calculate the distance traveled by the prey from the time it is dropped until the time it hits the ground.
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