14.04.2023

You pick marbles out of a bag 1 at a time and then replace them. In the bag 3 marbles are red, 5 and blue, and 4 are green. Eight students are going to take turns pulling out a marble and then putting it back.

What is the probability that at least one of the students will select a green marble? Round your answer to the nearest hundredt

. 8

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21.01.2022, solved by verified expert
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There are 3 red marbles, 5 blue marbles and 4 green marbles.

Hence total number of marbles = 12

Probablity that at least one student select green marble = 1 - Probablity that no student select a green marble.

Now the probability that no students select a green marble = (8/12)^8 = 0.039

Hence the probability that atleast one studemt select a green marble = 1-0.039 = 0.9609 ≈ 0.961

Thus the probablity that atleast one student select a green marble is 0.961

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Mathematics
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P Answered by PhD
The answer is in the image 

The answer is in the image 

Mathematics
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P Answered by PhD

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

Mathematics
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P Answered by PhD

The answer is in the image 

The answer is in the image 
Mathematics
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P Answered by PhD

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make $108 in $1800 sales

Mathematics
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P Answered by PhD

Here,

tip=18%of $32

tip=(18/100)*32

=0.18*32

=$5.76

Total payment=32+5.76=$37.76

Mathematics
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P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics
Step-by-step answer
P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics
Step-by-step answer
P Answered by PhD

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make $108 in $1800 sales

Mathematics
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P Answered by PhD

30% of 420 are first year students

first year students = (30/100 )*420

=126 students

Student who are not in first year = 420-126

=294 students  

Mathematics
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P Answered by PhD

Cost before sale tax=$46.00

Cost after including tax=$48.76

Sale tax=$48.76-46.00

=$2.76

we know,

sale tax=((sales tax rate)/100) * cost before sale tax

2.76=((sales tax rate)/100) *46.00

sale tax rate=(2.76*100)/46

                   =276/46

                    =6%

There fore sales tax rate=6%

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