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3 years ago

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Mathematics

1 answer:

Andrej [43]3 years ago

4 0

Answer:

Step-by-step explanation:

Given that :

r + 9 = 4 greater Than s

r - 1 1 is how much less than s

r + 9 = s + 4

Solve for r

Subtract 9 from both sides

r + 9 - 9 = s + 4 - 9

r = s - 5

Hence,

r - 11 = (s - 5) - 11

r - 11 = s - 5 - 11

r - 11 = s - 16

Therefore, r - 11 is 16 less than s

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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2). 0.275617

Step-by-step explanation:

It is given :

K people in a party with the following :

i). k = 5 with the probability of $\frac{1}{4}$

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iii). k = 10 with the probability $\frac{1}{2}$

So the probability of at least two person out of the 'n' born people in same month is = 1 - P (none of the n born in the same month)

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= $\frac{1}{4}\times (1-\frac{_{5}^{12}\textrm{P}}{12^5})+\frac{1}{4}\times (1-\frac{_{10}^{12}\textrm{P}}{12^{10}})+\frac{1}{2}\times (1-\frac{_{15}^{12}\textrm{P}}{12^{15}})$

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2).P( k = 10|at least 2 share their birthday in same month)

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Step-by-step explanation:

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