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3 years ago

10

a card is drawn from a standard deck of cards, then a month of the year is chosen. what is the probability of getting a diamond

or a 7, then november?

1 answer:

sukhopar [10]3 years ago

3 0

Im probably to late but there is too little info to answer this

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Ilya [14]

Answer:

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Step-by-step explanation:

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3 years ago

A manufacturing machine has a 10% defect rate.If 4 items are chosen at random, what is the probability that at least one will ha

vagabundo [1.1K]

Solution

Step 1

$\begin{gathered} probability\text{ of defective p = 10\% = }\frac{10}{100}\text{ = 0.1} \\ \\ probability\text{ of not defective q = 1 - p = 1 - 0.1 = 0.9} \\ \end{gathered}$

Step2

The probability that at least one will have a defect

= 1 - the probability that noon will have a defect

Step 3

Use the binomial distribution

$\begin{gathered} =1\text{ - }^nC_rp^rq^{n-r} \\ n\text{ = 4, r = 0} \\ \\ =1-^4C_0(0.1)^0(0.9)^{4-0} \\ \\ =\text{ 1 - 1}\times1\times0.9\times0.9\times0.9\times0.9 \\ \\ =\text{ 0.344} \end{gathered}$

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2 years ago

In an effort to reduce health care costs, General Motors sponsored a study to help employees stop smoking. In the study, 439 vol

Artist 52 [7]

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3 years ago

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Vesna [10]

Answer:

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3 years ago

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Find the distance between the two numbers on a number line. Write your answer as a mixed number.

FromTheMoon [43]

Answer:

3 1/3

Step-by-step explanation:

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3 years ago