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IceJOKER [234]
3 years ago
5

Which of the following sets represent A U B?

Mathematics
2 answers:
Black_prince [1.1K]3 years ago
5 0

Answer:

{2,3,4,6,8,9,10,12}

Step-by-step explanation:

The union of two sets is a new set that contains all of the elements

A U B = {2,3,4,6,8,9,10,12}

Vlad [161]3 years ago
3 0

Answer:

(6,12)

Step-by-step explanation:

The venn diagram shows 4 groups.

there are the numbers that represent A (3, 9)

and the numbers that show B (4, 2, 8, 10)

The ones that show C (1, 5, 7, 11)

And the ones that are both A and B (6, 12)

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Pls answer ASAP this is timed and don’t put a link
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Step-by-step explanation:

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3 years ago
Read 2 more answers
Assume that when adults with smartphones are randomly​ selected, 52​% use them in meetings or classes. If 14 adult smartphone us
emmasim [6.3K]

The probability that fewer than 4 of then use their smart phones in meetings  or classes is 0.00030243747.

Step-by-step explanation:

Fewer than 4 means ,less than 4 which is any number less than 4 and not including 4. This is 3, 2,1 and 0. So you find the probability that exactly 3 of then use their smart phone, exactly 2 of them use their smart phones, exactly 1 of them use his/her smart phone and none of them.

Given that 52% use smartphones in meetings and classes =0.52

Thus the remaining 48% do not use smartphones in meetings and classes=0.48

For C(14,3) you will have "14 chose 3", number of ways of choosing 3 out of 14'

=(0.52)³ *(0.48)⁹=0.00019018714

For C(14,2) you will have "14 chose 2", number of ways of choosing 2 out of 14

=(0.52)²*(0.48)¹²=0.00004044841

For C(14,1) you will have "14 chose 1", number of ways of choosing 1 out of 14

=(0.52)¹*(0.48)¹³=0.000037337

For  C(14,0) you will have "14 chose 0", number of ways of choosing 0 out of 14

=(0.52)⁰*(0.48)¹⁴=1*0.00003446492=0.00003446492

The probability that fewer than 4 of them use their smartphones in meetings or classes will be

0.00019018714 +0.00004044841+0.000037337+ 0.00003446492=0.00030243747

Learn More

  • Binomial random variable https://brainly.in/question/10088120

Keywords : Probability, random variable, binomial distribution

#LearnwithBrainly

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