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lorasvet [3.4K]

3 years ago

9

Ammy receives an allowance of $5 per week. In addition, she can earn $2 for each chore she does. This week, she wants enough mon

ey to buy candy for $15. Write an inequality to determine how many chores, c, Ammy must do to earn enough money to buy the candy.

1 answer:

Assoli18 [71]3 years ago

5 0

Amy would have to do 5 chores because 15-5=10 and 10/2=5

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Step-by-step explanation:

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Ninety-one percent of products come off the line within product specifications. Your quality control department selects 15 produ

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Answer:

Probability of stopping the machine when $X < 9$ is 0.0002

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Step-by-step explanation:

There is a random binomial variable $X$ that represents the number of units come off the line within product specifications in a review of $n$ Bernoulli-type trials with probability of success $0.91$ . Therefore, the model is ${15 \choose x} (0.91) ^ {x} (0.09) ^ {(15-x)}$ . So:

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Probability of stopping the machine when $X < 10$ is 0.0013

Probability of stopping the machine when $X < 11$ is 0.0082

Probability of stopping the machine when $X < 12$ is 0.0399

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