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Cerrena [4.2K]
3 years ago
8

Tambra needs to make sure that she has a representative sample for her master's thesis. She needs to ensure that her sample matc

hes the national consensus data on gender and ethnicity for the local area. She needs 60% females and 45% White participants to appropriately represent these groups in her data. She is interested in which type of sampling procedure?
Mathematics
1 answer:
maksim [4K]3 years ago
5 0

Answer:

Stratified random sampling.

Step-by-step explanation:

In Statistics, Stratified random sampling can be defined as a method of sampling that involves dividing a population into smaller groups known as strata.

In stratified random sampling, the strata are formed based on member's shared characteristics (e.g female or male, occupation, education) or attribute (e.g black or white).

Tambra needed 60% females and 45% White participants to appropriately represent the gender and ethnicity groups in her data. Hence, she is interested in stratified random sampling type.

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I’ll give brainliest
Natali5045456 [20]

Answer:

C. C = 3P

Step-by-step explanation:

C = total costs

P = number of popsicles

Unit price of 1 popsicle = $3

To get the total cost of popsicles, we need to multiply the number of popsicles bought by the price of each popsicles

Total cost of popsicles = number of popsicles × unit price

Thus, the question would be written as:

C = 3P

4 0
3 years ago
Alex drew a shape that belongs to both the category of rhombuses and the category of rectangles. Alex said the most specific nam
Nina [5.8K]

Answer:

yes because a rhombus and a rectangle are counted as a quadrilateral because they have 4 sides

Step-by-step explanation:

8 0
3 years ago
Need help on numbers 1 and 2 ill mark brainliest if they are right
geniusboy [140]

Question author, it's spelled pi not pie, and we use just use the Greek letter π.  Students, demand better from your teachers.

1. Rectangular prism, aka a box. Volume is length times width times height.

V = 5×7×9 = 315 cubic feet

That's cubic feet of course, the product of three lengths.  We didn't even need to do the problem, just look for the common answer and pick the one with the right units.  I just saw that same pattern in a volume problem yesterday.

Answer: 315 cubic feet, first choice

2. Cylinder, volume is base area times height, πr²h.   We have a radius of r=14/2=7 yd and h=8 yd.  We're using π=3.14.

V = πr²h = 3.14(7²)(8) = 1230.88 cubic yds

Answer: 1230.9 cubic yards, last choice

5 0
3 years ago
I don't know how to do this can someone explain it
sweet [91]
You’re trying to find x which is the side opposite to the angle. You’re given the adjacent angle. To find the variable, you use tangent. So you plug in tan(x)= opposite/adjacent. In this case it would be tan(27)=x/15. Then you multiply both sides by 15 to be 15(tan(27))=x which is 7.6=x
5 0
3 years ago
What’s the solution of x+y=29 and y=4x-11
tia_tia [17]

Answer:

x = 8

y = 21

Step-by-step explanation:

y = 4x − 11

x + y = 29

Solve for x:

x + y = 29

x + 4x − 11 = 29

5x − 11 = 29

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x = 8

Solve for y:

y = 4x − 11

y = 4 × 8 − 11

y = 21

6 0
3 years ago
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