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bija089 [108]
3 years ago
11

The odds of selecting a red card from a box of cards are 2:5. What is the probability of not selecting a red card from a box?

Mathematics
1 answer:
Kipish [7]3 years ago
4 0
3:5 because if there's a 2:5 chance of grabbing a red card then just subtract 2 from 5 and you get 3:5
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At a fabric store, metallic ribbon costs $16 for 4 ft. White ribbon is priced at 3 ft per dollar. Use rates to show which kind o
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Metallic ribbon: 16$ for 4ft

Dividing both sides by four, we get:

1 feet -- 4 dollars

White ribbon 3$ for 1 feet

1 feet -- 3 dollars

<h2><u><em>Therefore, the Metallic ribbon costs more per feet.</em></u></h2>
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2 years ago
What is the with of the rectangle is 2 times more than 5 times the length. What are the dimensions of the rectangle if the perim
Alex17521 [72]

Answer:

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Step-by-step explanation:

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Q and R are not mutually exclusive events. p (q) = 3/5 p(r) = 1/3 and p ( q and r)= 1/5 find P(Q or R).
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3 years ago
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Step-by-step explanation:

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8 0
2 years ago
Read 2 more answers
suppose the mean 40 yard dash time of a perfessional football player is 4.41 seconds with a standard deviation of 0.15 seconds.
I am Lyosha [343]
The percent of runners between these two times is 47.72.

We find the z-scores associated with each end of this interval using the formula
z=(X-μ)/σ

For the lower end,
z=(4.11-4.41)/0.15 = -0.3/0.15 = -2

Using a z-table (http://www.z-table.com) we see that the area to the left of, less than, this score is 0.0228.

For the upper end:
z=(4.41-4.41)/0.15 = 0/0.15 = 0

Using a z-table we see that the area to the left of, less than, this score is 0.5000.

We want the area between these times, so we subtract:
0.5000-0.0228 = 0.4772

This corresponds with 47.72%.
4 0
3 years ago
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