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Fynjy0 [20]
3 years ago
14

6. HELP

Mathematics
1 answer:
brilliants [131]3 years ago
7 0
16/32 = P/100
Cross multiply
p(32) = 16(100)
32p = 1600
divide by 32 on both sides
p = 50 %
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yan [13]
The answer would be 6.2 then 7
6 0
3 years ago
Suppose I have an urn with 9 balls: 4 green, 3 yellow and 2 white ones. I draw a ball from the urn repeatedly with replacement.
Mrrafil [7]

Answer:

E(X_n)=\frac{2(n-1)}{27}

E(y)=\frac{14}{9}

Step-by-step explanation:

From the question we are told that:

Sample size n=9

Number of Green g=4

Number of yellow y=4

Number of white w=4

Probability of Green Followed by yellow P(GY) ball

 P(GY)=\frac{4}{9}*\frac{3}{9}

 P(GY)=\frac{4}{27}

Generally the equations for when n is even is mathematically given by

 Probability of success P(S)=\frac{4}{27}

 Probability of Failure P(F)=\frac{27-4}{27}

 Probability of Failure P(F)=\frac{23}{27}

Therefore

 E(X_n)=\frac{n}{2}*P

 E(X_n)=\frac{n}{2}*\frac{4}{27}

 E(X_n)=\frac{2n}{27}

Generally the equations for when n is odd is mathematically given by

 \frac{n-1}{2}

 E(X_n)=\frac{n-1}{2}*\frac{4}{27}

 E(X_n)=\frac{2(n-1)}{27}

b)

Probability of drawing white ball

 P(w)=\frac{2}{9}

Therefore

 E(w)=\frac{1}{p}

 E(w)=\frac{1}{\frac{2}{9}}

 E(w)=\frac{9}{2}

Therefore

 E(y)=[E(w)-1]\frac{4}{9}

 E(y)=[\frac{9}{2}-1]\frac{4}{9}

 E(y)=\frac{14}{9}

5 0
3 years ago
Elsie and her friends plan to drive 1048 miles during their road trip. How many gallons of gas will they need for this trip?
ElenaW [278]
That would depend on the car and the amount of miles the car can go on one tank of gas. Divide that amount from 1048 to get the answer.
3 0
3 years ago
Kevin has 44 marbles. 34 of them drop. 89 get donated to him. how many marbles does Kevin have now?
kvv77 [185]

Answer:

44-34= 10+89=99 marbles

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Determine whether the equation below has a one solutions, no solutions, or an infinite number of solutions. Afterwards, determin
KengaRu [80]
Infinite number of solutions. x=4 and x=8
7 0
3 years ago
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