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ololo11 [35]
3 years ago
10

A statistics teacher has 4 periods of introductory statistics. She wants to get students’ opinions on a new homework policy. To

get a sample, the teacher randomly selects 1 period and surveys all of the students in that class. Which sampling method was used?
A.) cluster sampling
B.) simple random sampling
C.) stratified random sampling
D.) systematic random sampling
Mathematics
2 answers:
ladessa [460]3 years ago
8 0

Answer:

the answer is B

b) Simple random sampling

Radda [10]3 years ago
3 0

Answer:

Simple random sampling

Step-by-step explanation:

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Angle JKL is 54 degrees. What is the measure of angle MKL? *
hoa [83]

Answer:

MKL = 36°

Step-by-step explanation:

(3x + 6) + (6x + 12) = 54°

3x + 6x + 6 + 12 = 54

9x + 18 = 54

9x = 54 - 18

9x = 36

x = 36/9

x = 4

MKL = 6x + 12

MKL = 6(4) + 12

MKL = 24 + 12

MKL = 36°

6 0
3 years ago
Which measure is less than 435 inches?
Alex_Xolod [135]
435 inches = 36 1/4 ft.

So, the answer would be D) 12 ft. 3 in.

*Hope I helped :)*

7 0
3 years ago
Given the quadratic function f(x) = 2x + 5x-12, what is the value of f(-2)?
tino4ka555 [31]

Answer:

-26

Step-by-step explanation:

first substitute -2 for x : 2(-2)+5(-2)-12

-4+-10-12

-14-12

-26

-26 is your answer

pls mark me brainliest if this helps !

6 0
3 years ago
Read 2 more answers
What’s 6 (3x + 5) please
olga nikolaevna [1]

6(3x+5)

6*3x=18x

6*5=30

<u>18x+30</u> is your answer! I hope this helped! :)

5 0
3 years ago
If your playing a game and get 15 coins 30 minutes. How many coins will you get in 1 hour and 40 minutes?
krok68 [10]

Answer:

You would get 50 coins in that time.

Step-by-step explanation:

To find this, we first need to find the unit rate. We can get that by dividing the amount of coins by the amount of time.

15 coins/ 30 mins = .5 coins per minute.

Now, we have 100 minutes in the second part of the problem, so we multiply the rate by that amount of time.

.5 coins per min * 100 mins = 50 coins

7 0
3 years ago
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