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EastWind [94]
3 years ago
9

Sampling Methods: Classify the type of sampling method used. At a border crossing, every 15th car is searched. systematic strati

fied cluster none of these Does this qualify as a random sample
Mathematics
1 answer:
jonny [76]3 years ago
7 0

Answer:

Systematic Stratified Random Sampling

Step-by-step explanation:

Systematic Stratified Random Sampling

In this type of random sampling the list of element is counted and every kth element is taken. For example if there is a line of 100 students every 5th student would be taken and the students would be divided into 20 groups or strata.

A cluster sampling is done when the population is divided into groups and then each element of the group is considered.

Random sampling is in such a manner that each unit of the population has equal probability of being included in the sample.

As the systematic stratified is done randomly  i.e there is no starting point it is a random sample. Any element can be chosen e.g 5,3, or 7 randomly

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TiliK225 [7]

Answer:

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4 0
3 years ago
Find the equation of the circle whose center and radius are given.
trapecia [35]
(x – h)² + (y – k)²<span> = r</span>² 

Fill in the numbers 

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6 0
3 years ago
Read 2 more answers
Help me I dont understand ittt
stepan [7]
It’s a. vertex is the lowest or highest point so (1,-8) x-intercepts is where the parabola hits the x axis so (-1,0) and (3,0)
8 0
3 years ago
How many terms are in the expression 2x + 3x + 4 + 2y?
Luden [163]

Answer:

7 terms

Step-by-step explanation:

A term is a single mathematical expression. It may be a single number (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted. Some terms contain variables with a number in front of them. ... Examples of single terms: 3x is a single term.

6 0
3 years ago
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Is x = -7, the solution to -11 + 2x = -26? Justify your answer in complete sentences.
Natali5045456 [20]
First of all, you can move the +2x to the other side:
-11 = -26 - 2x

Then you can move the -26 to the other side and then simplify:
-11+26 = -2x
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Then you can divide both sides by 2:
7.5 = -x

Then you can flip the sides and the signs around:
x = -7.5

No, The answer is not -7, it is -7.5
Hope this helps! :)
4 0
3 years ago
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