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7.SP - Statistics & Probability Test 2
Section 1
Item
Item
A middle school principal creates a table showing the elective courses of the 120 students at the school. Each student at the school
enrolls in only 1 elective course.
Item
Iten
Art
Band Chorus
10
16
11
Iten
6th
Grade
7th
Grade
16
12
Iter
8th
Grade
14
11
17
Iter
Ite
If a student in the Art course is randomly selected, what is the probability that student is in the 7th grade?
Ite
Ite
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2

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: