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steposvetlana [31]
3 years ago
8

A box contains 3 red and 4 green marbles. If 5 marbles are drawn without replacement, what is the expected number of red marbles

Mathematics
1 answer:
blsea [12.9K]3 years ago
4 0

Answer:

i hope this helps i believe it is 1/3

2 is

Step-by-step explanation:

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If the x-values of the table shown above are doubled and the y-values stay the same, it represents the function g(x). Construct
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Answer:

The maximum value of the table t(x) has a greater maximum value that the graph g(x)

Step-by-step explanation:

Hope this helps :P

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2 years ago
A package of 10 batteries is checked to determine if there are any dead batteries. Four batteries are checked. If one or more ar
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Answer:

There is a probability of 76% of not selling the package if there are actually three dead batteries in the package.

Step-by-step explanation:

With a 10-units package of batteries with 3 dead batteries, the sampling can be modeled as a binomial random variable with:

  • n=4 (the amount of batteries picked for the sample).
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The probability of having k dead batteries in the sample is:

P(x=k) = \dbinom{n}{k} p^{k}q^{n-k}

Then, the probability of having one or more dead batteries in the sample (k≥1) is:

P(x\geq1)=1-P(x=0)\\\\\\P(x=0) = \dbinom{4}{0} p^{0}q^{4}=1*1*0.7^4=0.2401\\\\\\P(x\geq1)=1-0.2401=0.7599\approx0.76

8 0
3 years ago
alice rode her bike the same number every day for 17 days she rode a tottle of 68miles during thes 17 days at this rate how mane
s344n2d4d5 [400]
4 miles!

68 divided by 17 = 4
7 0
3 years ago
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in a bag of marbles 1/2 of the marbles have a star on them if 8 marbles have a Star how many total marbles are in the bag​
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Answer:

Step-by-step explanation:

8x1/2

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4

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Answer:

69

Step-by-step explanation:

12+22=69

5 0
3 years ago
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