Every person has blood type O, A, B, or AB. A random group of people are blood-typed, and the results are shown in the table. A 2-column table with 4 rows is shown. The first column is labelled Blood Type with entries O, A, B, AB. The second column is labelled Number of People with entries 22, 20, 6, 2.

Use the table to determine the following probabilities.

The probability that a randomly chosen person from this group has type B is ___
.

The probability that a randomly chosen person from this group has type AB is ___
.

The probability that a randomly chosen person from this group has type B or type AB blood is ___

2

step-by-2step explanation:

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

there are 25 people coming to the party

step-by-step explanation:

the text says that there will be 22 children at this party, 1 teacher, and 2 parents. so if you add them all together (22+1+2) it will equal 25. (=25)