3 years ago

A bag had 3 pink marbles and 4 purple marbles find the probability of selecting 3 pink marbles without replacement

1 answer:

Klio2033 [76]3 years ago

7 0

There are 7 marbles in the bag.
The probability of drawing a pink one is (3/7) .

Then you have 1 pink one, and there are 6 marbles in the bag.
The probability of drawing a pink one is (2/6) .

Then you have 2 pink ones, and there are 5 marbles in the bag.
The probability of drawing a pink one is (1/5) .

The probability of all 3 draws being successful is

(3/7) (2/6) (1/5) = 6/210 = 1/35 = about 2.86% (rounded)

You might be interested in

Muffins are sold in packages of 18 and cost $27 per package. Each of the 6 friends gets an equal share of muffins from p package

anzhelika [568]

3 x 6 to the power of 4 divide that by how many people their are !

8 0

3 years ago

Which expression is equivalent to 10 of the power of 5 ? 10·5 510 5·5·5·5·5·5·5·5·5·5 10·10·10·10·10

stira [4]

Answer is
10.10.10.10.10

8 0

3 years ago

Read 2 more answers

What is the waist to hip ratio? Calculate the WHR of a male with a waist measurement of 40 inches and hip measurement 2 inches l

aev [14]

Waist to Hip Ratio (WHR) = Waist Measurement / Hip Measurement

Waist Measurement = 40 inches
Hip Measurement = 2 inches less = (40 -2) = 38 inches.

Waist to Hip Ratio (WHR) = 40/38 = 1.0526

8 0

3 years ago

Write an equation of a line that is parallel to the given line.

Marina CMI [18]

Answer:

5) y=5

6)x=7

7)a=18

Step-by-step explanation:

5) y= any number will work. don't add a variable like x

6)x= any number will work. don't add a variable

My work for 7 is in the picture. If you'd like me to explain more for 7 lmk :)

6 0

3 years ago

Help me with this please and quick!

bulgar [2K]

The answer would be D because it's the only one that makes sense

5 0

3 years ago