X-Intercepts And Y-Intercepts – Math Exam 2

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X-Intercepts And Y-Intercepts, Graph, Equation, Probability, Random, Expected Value

The key terms in this Mathematics course include X-Intercepts And Y-Intercepts, Graph, Equation, Probability, Red Marbles, Random, Expected Value, Random Variable, Coins, Tails, Straight Line, Ticket, Lottery, Winning Ticket, Deck of Cards, Red Card, Well-Shuffled Deck, Ace, Slope, Undefined, Math


Find the x-intercepts and y-intercepts of the graph of the equation. 2x + y = 2

x-intercept: 2; y-intercept: 1

x-intercept: -3; y-intercept: 8

x-intercept: 8; y-intercept: -3

x-intercept: 1; y-intercept: 2Correct


Find the probability of the given event.
A bag contains 8 red marbles, 3 blue marbles, and 1 green marble. A randomly drawn marble is not blue.

9

1/4

4/3

3/4Correct


Find the expected value of the random variable in the experiment. Three coins are tossed, and the number of tails is noted.

1.75

1.5Correct

2

1


How many ways can 6 people be chosen and arranged in a straight line if there are 8 people to choose from?

20,160Correct

40,320

48

720


Suppose you buy 1 ticket for $1 out of a lottery of 1000 tickets where the prize for the one winning ticket is to be $500. What are your expected winnings?

-$.40

$0

-$.50Correct

-$1.00


Find the probability of the given event.
A card drawn from a well-shuffled deck of 52 cards is an ace or a 6.

7

7/26

2/13Correct

13/2


If a single fair die is rolled, find the probability of a 4 given that the number rolled is odd.

0Correct

1/6

1

1/2


One card is selected from a deck of cards. Find the probability of selecting a red card or a diamond.

3/4

0

1/2Correct

1/4


A family has five children. The probability of having a girl is . What is the probability of having exactly 2 girls and 3 boys?

.3125Correct

.0625

.6252

.0312


Find the slope of the line through (4, -7) and (6, 3)

5Correct

Undefined

2

10


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