If you were to randomly survey 50 people from the phone books of 20 randomly chosen cities, would this be a random sample? Why or why not?

What is 3/5 / 1 + 3 2/5

An urn contains 1 red ball, 2 green balls, and 4 blue balls. Three balls are randomly chosen from the urn. How many different color combinations are possible?

120t-0.4t^4+1000=0 How can i solve this?

Data shows the probability of dying feom cardiovascular disease is 0.45 and that the probability from dying ofncancer is. 22. What is the probability of dying from some other cause?

Assume that the candle manufacturer has 7 types of round candles and 6 types of square candles available, and a gift set consists of 2 round and 2 square candles. How many different gift packages are possible

Solve d = c π for π. A) π = cd B) π = c d C) π = d c D) π = c - d

1/5X-3=4 solve the equation

If a pump can fill a pool within 6 hours, and another pump can empty the pool within 3 hours, how long will it take the pool to empty when it's full and when both pumps are working?

Candy is on sale for $0.75 each. you have a coupon for $0.25 off your total purchase. Write a function rule for the cost of n pieces of candy. A. C (n) 0.25n-0.75 B. C (n) = 0.75n-0.25 C. C (n) = 1.0n D. C (n) = 0.75n

The price of a watch was increased by 10% to £132. What was the price before the increase?