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Tom [10]
3 years ago
6

a class of 25 students has 15 girls and 10 boys.If one student is chosen at random,what is the probability it is a girl

Mathematics
1 answer:
pav-90 [236]3 years ago
5 0

Answer:60% probability it will be a girl

Step-by-step explanation:

P(the chosen student is a girl) = 15/25

P(the chosen student is a girl) = 0.6 or 60%

The probability that the chosen student is a girl is 60%.

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3 years ago
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sharon is building a rectangular patio the patio will be 18 bricks wide and 29 bricks long.she has 500 bricks. does she have eno
Goryan [66]
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7 0
3 years ago
In a school machine shop, 60% of all machine breakdowns occur on lathes and 15% occur on drill presses. Let E denote the event t
RSB [31]

Answer:

A. P(EC) = 0.4  

B. P(E∪E) = 0.75

C. P(EC ∩ FC) = 0.25

Step-by-step explanation:

Let us calculate -:

we are given with - P(E) = 60 and P(F) =.15,

Thus , (a) P(E^C)=1-P(E)

                   =1-0.6

                   =0.4

(b) P(E∪F) = P(E) + P(F)

   = 0.60 + 0.15

   = 0.75

(c) P(E^C∩F^C) =1-P(E∪ F)

   =1-0.75

   = 0.25

Hence , the answers are -A. P(EC) = 0.4  , B. P(E∪E) = 0.75  , C. P(EC ∩ FC) = 0.25.

6 0
3 years ago
If p= 6-2y, work out p when y=-5
Blizzard [7]
You should change the y by the number given
P=6-2*-5
P=16
5 0
2 years ago
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givi [52]

Answer:

Justin does not have enough money

Step-by-step explanation:

If you subtract 210, 87.35, 42.79, and 25.68 you come up with 54.18 which is less than 54.79 so there fore he does not have enough money to buy the video game

(Brainliest????)

7 0
3 years ago
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