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Lubov Fominskaja [6]
3 years ago
12

A television news program asks its viewers to call in to give their opinions on an upcoming ballot question. What type of sampli

ng method does this represent?
Mathematics
1 answer:
Alla [95]3 years ago
4 0

Answer:

This is an example of self selecting sampling

Step-by-step explanation:

This is an example of self selecting sampling because the news program is asking viewed to give their opinions. The viewers themselves have a choice of participating in the sample therefore is self selecting.

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Absolute value for |27 1/4|
mr_godi [17]

Answer:

27 1/4

Step-by-step explanation:

4 0
3 years ago
a surf instructor has an initial fee of $12 and charges $8 per hour for lessons. Write a linear equation that represents the tot
Ray Of Light [21]

y = total cost

x = # of hours

$12 + $8x = y

8 0
3 years ago
A die is rolled 20 times. given that three of the rolls came up 1, five came up 2, four came up 3, two came up 4, three came up
Serjik [45]

Solution:

Number of times a die is rolled = 20

1 - 3=A

2 - 5=B

3 - 4=C

4 - 2=D

5 - 3=E

6 -  3=F

Total number of arrangements of outcomes , when a dice is rolled 20 times given that 1 appear 3 times, 2 appears 5 times, 3 appear 4 times, 4 appear 2 times , 5 appear three times, and 6 appear 3 times

            = Arrangement of 6 numbers (A,B,C,D,E,F) in 6! ways and then arranging outcomes

= 6! × [ 3! × 5! × 4!×2!×3!×3!]

= 720 × 6×120×24×72→→[Keep in Mind →n!= n (n-1)(n-2)(n-3)........1]

= 895795200  Ways

8 0
3 years ago
4 EZ GEOMETRY QUESTIONS FOR 20 POINTS!
MatroZZZ [7]

Answer:

1. use the formula

(n-2)180

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2. use the formula

360/n\\360/12\\n = 30

3. There is only one at 360 degrees

4. there are 6 rotational symmetries and the number of reflectional symmetries would be 6 as you can see:

6 0
2 years ago
What are the a b and c values of 3x^2-4x=20
joja [24]

Answer:

a = 3, b = -4, c = -20

Step-by-step explanation:

<u>Step 1:  Find the a, b, and c values</u>

ax^2 + bx +  c = 0

3x^2 - 4x - 20 = 0

The a value is:  3

The b value is:  -4

The c value is:  -20

Answer:  a = 3, b = -4, c = -20

8 0
3 years ago
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