7. A spinner from a board game randomly indicates a real number between 0 and 10. The spinner is fair in the sense that it indi- cates a number in a given interval with the same probability as it indicates a number in any other interval of the same length. (a) Explain why the function (0.1 if 0 < x< 10 f(x) if x <0 or x> 10 is a probability density function for the spinner's values. (b) What does your intuition tell you about the value of the mean? Check your guess by evaluating an integral.

Q: Over the past 40 years, the cost of gas has increased by by 400%. If gas currently costs $3.89 per…

A:

Q: A jacket costa $75 and it is on sale for 56 % off . What is the discounted price of the jacket

A:

Q: An instrument store gives a 10% discount to all students off the original cost of an instrument.…

A: An instrument store gives a 10% discount to all students off the original cost of an instrument.…

Q: After being discounted 10%, a weather radio sells for $53.96. Find the orginal price

A:

Q: A mobile phone cost OMR 280. What is the cost of the mobile after a discount of 15%?

A: We have given mobile phone cost=OMR 280  Discount =15%=15/100=0.15  Discount( in OMR)=0.15×280=42 So…

Q: the bill at olive garden costs $32.75 find the total cost if the tax is 9.25 and a 18% tip what the…

A: Given, Olive garden cost= 32.75 And tax is 9.25% Tip is 18%

Q: A retirement dinner for two is $65.40 including tax. Find the total cost if a 20% tip is added to…

A: given,       retirement dinner tax for two including tax = $65.40     tip =20%

Q: The cost of a jacket is marked down by 30% on a certain website for Black Friday.  At checkout, the…

A: we can solve this problem using method;Let us take the original price of the jacket is 100 unitthen…

Q: your parents are buy a new car for 15000 dollars.They pay 6.25% sales tax.How much do they pay for…

A: Car buy 15000dollar and they pay tax 6.25%

Q: Find the selling Price of an item that originally cost a store $70 was marked up 20% and then after…

A: Given that the original Cost at  a store is $70 and was marked up to 20%. Then after 6 months of no…

Q: Your favorite jeans are on sale for 60% off. The regular price is $45. How much will you save by…

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Q: last week Alexander was paid 56 for 7 hours of work.how much mony does Alexander's jop pay per hour.

A:

Q: A store has a sale with 12% off every item. When you enter the store you receive a coupon that…

A:

Q: Four gallons of gas cost $13.70. Write a unit rate that fits with this statement for 1 gallon, you…

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Q: Find the amount due if $600 is borrowed for 9 months at 8% simple interest. Amount = $ %3D

A:

Q: An employee receives $20 in commission on sales amounting to $500. What is the employee's commission…

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Q: 2000 minus 30 What percentage? Please answer thank you

A:

Q: You have a 20% total purchase coupon. You total is $134.22, if you use the coupon what does your…

A:

Q: A machine is sold for 42% of the original cost. If the original cost is $9255.00, find the selling…

A: $ 3887.1

Q: What is the cost of an item that retails for $18 and has a dollar markup of $8?

A:

Q: The sale price of a swimming pool after a 18.5% discount is $1173.60. Find the original list price…

A: given sale price of a swimming pool after 18.5%  discount is $1173.60 let original price of pool is…

Q: At Grocery Mart, tomatoes are $3.15 per pound, or you can buy a 6-pound box for $ What is the unit…

A: Tomatoes are $3.15 per pound or 6 pound for $14

Q: Giovanni and Josh run an online tutoring website   First time student receive a 5% discount for…

A: We can start by using algebra to represent the given information:   Let x be the original price or…

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.