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brilliants [131]

2 years ago

6

A jar contains 7 poker chips: 3 blue, 3 red and 1 white. You randomly select two chips from the jar. What is the probability tha

t your selection includes two blue chips? Round your answer to two decimal places.

1 answer:

Triss [41]2 years ago

3 0

Answer:

ok so

7+3+3+1=14

and if you pull one out the chance is

3/14

then

2/13

so 3/14*2/13

0.03296703296

so the answer is

0.03

Hope This Helps!!!

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Write the missing decimal so that each pair adds to 1. 2/5+decimal =1

I am Lyosha [343]

Answer:

0.6

Step-by-step explanation:

We can get the answer by subtracting the decimal by one.

2/5 = 0.4

1 - 0.4 = 0.6

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1 year ago

The side lengths are 9,12,18. is this a right triangle?

andrezito [222]

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2 years ago

Vicki puts 10 books on a shelf. The 10 books take up 28 cm. What is the mean (average) thickness of her books? Can I have it wor

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2 years ago

Read 2 more answers

WHAT IS PRODUCT OF (6X+5)(X^2-2X+1)

Anettt [7]

$(6x+5)(x^2-2x+1)=6x\cdot x^2-6x\cdot2x+6x + 5\cdot x^2-5\cdot 2x+5 =\\ \\=6 x^3-12x^2+6x + 5 x^2- 10x+5 =6 x^3-7x^2-4x+5$

4 0

3 years ago

A human resources representative claims that the proportion of employees earning more than $50,000 is less than 40%. To test thi

bearhunter [10]

Answer:

The statistic for this case would be:

$z=\frac{\hat p -p_o}{\sqrt{\frac{\hat p(1-\hat p)}{n}}}$

And replacing we got:

$z= \frac{0.436-0.4}{\sqrt{\frac{0.436*(1-0.436)}{700}}}= 1.92$

Step-by-step explanation:

For this case we have the following info:

$n =700$ represent the sample size

$X= 305$ represent the number of employees that earn more than 50000

$\hat p=\frac{305}{700}= 0.436$

We want to test the following hypothesis:

Nul hyp. $p \leq 0.4$

Alternative hyp : $p>0.4$

The statistic for this case would be:

$z=\frac{\hat p -p_o}{\sqrt{\frac{\hat p(1-\hat p)}{n}}}$

And replacing we got:

$z= \frac{0.436-0.4}{\sqrt{\frac{0.436*(1-0.436)}{700}}}= 1.92$

And the p value would be given by:

$p_v = P(z>1.922)= 0.0274$

4 0

3 years ago