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Sholpan [36]
3 years ago
5

Cards numbered 1 through 15 are mixed up and placed in a bag. Malik chooses one of the cards without looking. What is the probab

ility that Malik chooses a card with a number greater than or equal to 12?
A) 4/5
B) 4/15
C) 1/4
D) 1/5
Mathematics
2 answers:
a_sh-v [17]3 years ago
7 0
In this problem, there are 15 total cards, so that goes in the denominator. We want cards equal to or greater than 12. There are four of these types of cards. These cards are 12, 13, 14, an 15. The number four goes on the numerator. So, the final answer is 4/15.
lapo4ka [179]3 years ago
4 0
Hello :)

I believe your answer is 4/15

Hope this helps :D
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6 0
3 years ago
Cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc what is 2x+9=35
creativ13 [48]
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7 0
3 years ago
Read 2 more answers
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Answer: 0.4758

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Given : Mean : \mu=137\text{ lb}

Standard deviation : \sigma =28.9\text{ lb}

Also, the new population of pilots has normally distributed .

The formula to calculate the z-score :-

z=\dfrac{x-\mu}{\sigma}

For x=130 lb .

z=\dfrac{130-137}{28.9}=-0.2422145\approx-0.24

For x=171lb.

z=\dfrac{171-137}{28.9}=1.1764705\approx1.18

The p-value =P(-0.24

=0.8809999-0.4051651=0.4758348\approx0.4758348\approx0.4758

Hence, the required probability : 0.4758

6 0
3 years ago
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