Abox contains 95 pink runner bands and 90 brown rubber bands. you select a rubber band at random from the box. find each probability. write the probability as a fraction is simplest form.

a. find the theoretical probability of selecting a pink rubber band.

b. find the theoretical probability of selecting a brown rubber band.

Step-by-step explanation:

It is given that A box contains 95 pink rubber bands and 90 brown rubber bands.

Then, the number of pink rubber bands=95,

Number of brown rubber bands=90 and

the total number of rubber bands=95+90=185.

Now, (A) The theoretical probability of selecting a pink rubber band is given as:

which is the required probability in simplest form.

(B) The theoretical probability of selecting a brown rubber band is given as:

.

which is the required probability in simplest form.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction