Answered

Makahanap ng mga eksaktong solusyon sa iyong mga problema gamit ang IDNStudy.com. Makakuha ng mga kumpletong sagot sa lahat ng iyong mga tanong mula sa aming network ng mga eksperto.

Josh has 4 black pens, 3 blue pens, and 2 red pens in his school bag. what is the probability that josh chose two blue pens, if he replaced the first pen back in his pocket before choosing a second pen?

Sagot :

Harutotskiidn

Answer:

[tex] \frac{1}{9} [/tex]

is the probability that Josh two blue pens with replacement

Step-by-step explanation:

4+3+2 = 9 (there are 9 total of pens)

there are 3 blue pens, it would be the numerator while 9 is our denominator, thus the probability that Josh chose blue pen is

[tex] \frac{3}{9} [/tex]

since Josh puts back the first one, the probability of it is the same,

[tex] \frac{3}{9} [/tex]

then multiply the two probability,

[tex] \frac{3}{9} \times \frac{3}{9} [/tex]

3×3=9, 9×9=81

[tex] \frac{9}{81} [/tex]

simplify,

[tex] \frac{1}{9} [/tex]