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3 years ago

14

Kari picked 23 bunches of flowers from her garden. Each bunch had the same number of flowers. After she gave 46 flowers away, sh

e had 138 left. How many flowers were in each bunch?

1 answer:

weqwewe [10]3 years ago

5 0

Answer:

8 flowers in each bunch

Step-by-step explanation:

if she had 23 and 8 in each that would be 184. and when she gave 46 away she had 138 left

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Answer:

a) $P(X$

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b) $P(7< X$

c) We want to find a value c who satisfy this condition:

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And using the cumulative distribution function we have this:

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And solving for c we got:

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Step-by-step explanation:

For this case we define the random variable X as he amount of time (in minutes) that a particular San Francisco commuter must wait for a BART train, and we know that the distribution for X is given by:

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Part a

We want this probability:

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And for this case we can use the cumulative distribution function given by:

$F(x) = \frac{x-a}{b-a} = \frac{x-0}{20-0}= \frac{x}{20}$

And using the cumulative distribution function we got:

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For the probability $P(X>14)$ if we use the cumulative distribution function and the complement rule we got:

$P(X>14) = 1-P(X$

Part b

We want this probability:

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And using the cdf we got:

$P(7< X$

Part c

We want to find a value c who satisfy this condition:

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Step-by-step explanation:

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Alex

Answer:

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Step-by-step explanation:

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