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mestny [16]
3 years ago
10

A friend of yours in your intro stats class obtains permission to randomly sample the University student body to conduct a satis

faction survey on some recent changes to the enrollment process. She randomly samples 50​ freshmen, 50​ sophomores, 50​ juniors, and 50 seniors. This is an example of a?
Mathematics
1 answer:
lions [1.4K]3 years ago
6 0

Answer:

Stratified data

Step-by-step explanation:

The given data in the question is an example of a "Stratified data"

A Stratified data is type of sampling of data or the random samples in which the collected data is divided into the sub groups of the same type or the same category.

Also,

The sample size of the subgroups in the Stratified data remains the same for every subgroup.

Here, the subgroups are

freshmen

sophomores

juniors

seniors

and the each have same sample size i.e 50

You might be interested in
Help me help me help me help me ​
Nitella [24]

Answer:

1. 4/12, 3/9, 2/6, 5/15

2. 4/8, 8/16, 6/12

3. 2/8, 4/16, 3/12

4. 6/8, 9/12, 4/16

Step-by-step explanation:

I'm assuming your question is about all 4 problems shown so I'll explain how to solve all of them.

1. The question is asking you to find an equivalent fraction to 1/3. The easiest way to do this is to reduce all of the options given.

To reduce fractions, first determine if the numerator and denominator share any factors. If they do, divide both terms by the shared factors until you no longer get whole numbers.

Step 1: reduce answer choices

6/16 = 3/8 (done by dividing both terms by 2)

4/10 = 2/5 (divide both by 2)

3/8 = 3/8 (fully reduced)

2/5 = 2/5 (fully reduced)

4/12 = 1/3 (divide both by 4)

5/10 = 1/2 (divide both by 5)

1/2 = 1/2 (fully reduced)

3/9 = 1/3 (divide both by 3)

2/6 = 1/3 (divide both by 2)

5/15 = 1/3 (divide both by 5)

3/8 = 3/8 (fully reduced)

3/4 = 3/4 (fully reduced)

2. This question is solved the same way as question 1.

Step 1: reduce answer choices

2/5 = 2/5

6/9 = 2/3

4/8 = 1/2

3/9 = 1/3

8/16 = 1/2

8/10 = 4/5

7/12 = 7/12

6/12 = 1/2

3. This question is solved the same way as questions 1 and 2.

Step 1: reduce answer choices

3/8 = 3/8

2/8 = 1/4

4/9 = 4/9

2/7 = 2/7

4/16 = 1/4

10/14 = 5/7

6/9 = 2/3

3/12 = 1/4

4. This question is solved the same way as questions 1, 2, and 3.

Step 1: reduce answer choices

6/8 = 3/4

4/9 = 4/9

4/6 = 2/3

9/12 = 3/4

10/12 = 5/6

6/9 = 2/3

12/16 = 3/4

7/9 =7/9

7 0
2 years ago
Plsss help meeeee 7^-8 divided by 7^-11
Andrej [43]

Answer:

i think the answer is 7^3

Step-by-step explanation:

when dividing numbers with exponents, you just subtract the smaller exponent from the larger one

pls tell me if im wrong

4 0
3 years ago
Read 2 more answers
Hey, I've been extremely confused with problems like :7x²-12x-4
bonufazy [111]
Factor by grouping.

(7x+2)(x-2) I think not sure
4 0
3 years ago
Solve: -19 = X - 19 halppppp
Juliette [100K]

Answer:

x = 0

Step-by-step explanation:

Step 1: Write equation

-19 = x - 19

Step 2: Solve for <em>x</em>

  1. Add 19 to both sides: 0 = x
  2. Rewrite: x = 0

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

-19 = 0 - 19

-19 = -19

3 0
3 years ago
Read 2 more answers
I really need help!!!
Ksenya-84 [330]

Answer(-2:23)


Step-by-step explanation:gose in a pattern.


8 0
3 years ago
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