answered
The table shows the number of boys and girls that have black, blonde, brown, or red hair color. What is the probability that a student is a boy with black hair? (round to nearest hundredth)

0.45

Step-by-step explanation:

From the given table, the number students have brown hair =

The total number of students =

Now, the probability that a student has brown hair is given by :-

Hence, the probability that a student has brown hair is 0.45

0.45

Step-by-step explanation:

From the given table, the number students have brown hair =

The total number of students =

Now, the probability that a student has brown hair is given by :-

Hence, the probability that a student has brown hair is 0.45

A) 0.15

Step-by-step explanation:

45+46+108+121 = 320

45/320 = 0.140625

A is the best answer. I would have rounded it to 0/14.

B) 0.45

Step-by-step explanation:

The total number of students is:

4 + 5 + 4 + 6 + 10 + 8 + 2 + 1 = 40

The number of students with brown hair is 10 + 8 = 18.

So the probability is:

P = 18/40 = 0.45

A) 0.15

Step-by-step explanation:

45+46+108+121 = 320

45/320 = 0.140625

A is the best answer. I would have rounded it to 0/14.

0.05

Step-by-step explanation:

Given :

Hair ColorBoysGirls

Black          4                 5

Blonde          4                  6

Brown          10                 8

Red                  2                   1

Solution :

Since ware required to find the probability that a student is a boy with red hair.

Total no. of boys with red hair = 2

Total no. of students = 4+4+10+2+5+6+8+1=40

Thus the probability  that a student is a boy with red hair =

⇒

⇒

⇒

Hence the probability that a student is a boy with red hair is 0.05

Answer

The answer is A or 0.20

Step-by-step explanation:

So if you add all the numbers up so (4+4+10+2+5+6+8+1) that would equal=40

8 is the number of girls with brown hair so I would divide 8 by 40

8/40=0.20

Hope this helps!