Mathematics, 22.05.2020 02:03 keisha7795
Four hundred raffle tickets were sold for $4 each. the one first prize winner will receive $300, and two people will each receive second prizes of $200. there will be three $100 winners. what will be the expected value of the raffle?
Answers: 2
Mathematics, 21.06.2019 13:40
Which expression is equivalent to (4x^3*y^5)(3x^5*y)^2 \a) 24x^13*y^7b) 36x^13*y^7c) 36x^28*y^7d) 144x^16*y^12
Answers: 1
Mathematics, 21.06.2019 20:30
Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.
Answers: 1
Mathematics, 21.06.2019 22:00
Given the quadratic function f(x)=3x^2-24x+49 a. use âcompleting the squaresâ to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function
Answers: 1
Mathematics, 21.06.2019 23:30
Determine if the following statement is true or false. the normal curve is symmetric about itsââŹâš mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about itsââŹâš mean, because the mean is the balancing point of the graph of the distribution. the median is the point whereââŹâš 50% of the area under the distribution is to the left andââŹâš 50% to the right.ââŹâš therefore, the normal curve could only be symmetric about itsââŹâš median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with oneââŹâš peak, which means theââŹâš mean, median, and mode are all equal.ââŹâš therefore, the normal curve is symmetric about theââŹâš mean, mu. c. the statement is false. the mean is the balancing point for the graph of aââŹâš distribution, andââŹâš therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of aââŹâš distribution, andââŹâš therefore, all distributions are symmetric about the mean.
Answers: 2
Four hundred raffle tickets were sold for $4 each. the one first prize winner will receive $300, and...
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