Math155 4 questions
Math Modeling Name______________________________
Math 155 (Soderstrom) Take-Home Test #2 – DUE: November 19, 2019 (with projects)
This test, along with Chapters 5-9 in class worksheets AND the project are due at 11:00 am on Tuesday, November 19, 2019
1. Find the slope and the y-intercept of the line y = -0.75x + 2.5. Then sketch the graph for values of x between -8 and 8.
2. The given table represents a function. Make a clear graph of the function.
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Find a linear equation that best fits the graph. What is its correlation coefficient?
3. A game, which costs $1 to play consists of drawing a card from a deck of 52 cards. If the card is an ace, you win $5. If the card is a face card, you win $2. And, if the card is any other card, you lose. What is the dealer’s edge in this game?
4. The following grades were assigned in a class last year A,B,D,C,C,A,B,B,D,A,F,F,C,D,A,D,F,B,B,C,C,B,C,A,C,B,C,D,D,C,A,B,C,B,C,C a) Fill out the following table
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Tallies |
Frequency |
Relative Frequency |
Rel. Freq x 360o |
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A |
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% |
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B |
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% |
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C |
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% |
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D |
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% |
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F |
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% |
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b) Draw the pie graph for the data