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laila [671]
3 years ago
14

Just some simple math fro points reward brainliest

Mathematics
1 answer:
Ierofanga [76]3 years ago
7 0
First one is a function and the second one is also a function !
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An urn contains 12 balls, of which 4 are white.
wel

Answer:

a) \frac{1}{3}

b) \frac{4}{12}\,,\,\frac{4}{11}\,,\,\frac{4}{10}\,,...

Step-by-step explanation:

Number of balls in the urn = 12

Number of white balls in the urn = 4

So, number of balls which are not white = 12 - 4 = 8

We know that probability = No. of outcomes/Total number of outcomes

Let A_i\,,\,B_i\,,\,C_i denotes the event of getting white ball by A, B and C

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Probability = Number of white balls/Total number of balls

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b)the balls that are withdrawn are not replaced.

Solution:

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If A lost and B wins: P\left ( B_1|A_1^{c} \right )=\frac{4}{11}

If A and B lost and C wins: P\left ( C_1|A_1^{c}\,B_1^{c} \right )=\frac{4}{10}

and so on....

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3 years ago
Which is NOT TRUE of data sets? A) A measurable characteristic of a sample is called a statistic. B) A measurable characteristic
zheka24 [161]
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3 years ago
Pet Supplies makes a profit of $5.50 per bag on its line of natural dog food. If the store wants to make a profit of no less tha
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Answer: x ≤ 950

Step-by-step explanation:

5,225.00÷5.50

= 950

5 0
3 years ago
Read 2 more answers
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