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AGRI 470 Name(s): Print off all sheets in this workbook and turn in during class

ID: 3046152 • Letter: A

Question

AGRI 470 Name(s):

Print off all sheets in this workbook and turn in during class. Also, please upload your Excel file to Bb.

Green cells are for answers

Part 1 (4.5 pts) Answer 1. to 6. assuming you draw one card.

1. What is the probability of drawing an ace from a normal deck of 52 cards?

<<< Enter formula

2. What is the probability of drawing an ace or a king from a normal deck of 52 cards? (One or the other)

0.0000 <<< Enter formula

3. What is the probability of drawing a red or black card from a deck of 52 cards? (One or the other)

0.0000 <<< Enter formula

4. What is the probability of drawing a red and black card from a deck of 52 cards? (Both with one draw)

0.0000 <<< Enter formula

5. What is the probability of drawing a spade?

0.0000 <<< Enter formula

6. What is the probability of drawing a queen that is also a red card? (red queen)

0.0000 <<< Enter formula

7. You plan to purchase a warning detector to prevent respiratory injury from leaks in a confined space which

is part of your production process. The company tells you that due to the new technology they are using

it may fail to detect the toxic leak about 15% of the time. They suggest purchasing more than one detector

to improve the probability of detection

a. What is the probability of failure if you buy two?

0.0000 <<< Enter formula

b. What is the probability of failure if you buy three?

0.0000 <<< Enter formula

c. What is the probability it won't fail if you buy three?

0.0000 <<< Enter formula

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Explanation / Answer

Solution

(a) P(an ace) = 4C1/52C1 = 4/52 = 1/13

(b) P(an ace or a king) = 1/13+1/13 = 2/13

(c) P(red or black) = 26/52+26/52 = 1

(d) P(red and black) = 0 (as to withdrwa only one card at a time)

(e) P(spade) = 13/52 = 1/4

(f) P(red queen) = 2/56 = 1/26

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