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son4ous [18]
3 years ago
15

During the month of June, Ava kept track of the number of days she saw birds in her garden. She saw birds on 18 days of the mont

h. What is the experimental probability that she will see birds in her garden on July 1st?
Mathematics
1 answer:
kirza4 [7]3 years ago
3 0
There are 30 days in the month of June. Out of the 30 days, Ava saw birds on 18.

P(bird)=18/30

We can simplify the fraction by dividing both sides by 2.

P(bird)=18/30=9/15

9/15=0.6=60%

Theres a 9/15 or 60% chance that she will see a bird on July 1st.


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3 0
3 years ago
The number of potato chips in a bag is normally distributed with a mean of 74 and and a standard deviation of 4. Approximately w
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99.8%  is the percent of bags contain between 62 and 86 potato chips.

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We are given the following information in the question:

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Standard Deviation, σ = 4

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Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

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P(62 \leq x \leq 86) = P(\displaystyle\frac{62 - 74}{4} \leq z \leq \displaystyle\frac{86-74}{4}) = P(-3 \leq z \leq 3)\\\\= P(z \leq 3) - P(z < -3)\\= 0.999 - 0.001 = 0.998 = 99.8\%

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7 0
3 years ago
Read 2 more answers
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