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3 years ago

A ______ sample is one in which the population is divided into groups and a random sample of groups is drawn.

Mathematics

2 answers:

morpeh [17]3 years ago

6 0

Answer:

Wouldn't it be a "Cluster" sample?

A _Cluster_ sample is one in which the population is divided into groups and a random sample of groups is drawn.

MAVERICK [17]3 years ago

3 0

A cluster sample is one in which the population is divided into groups and a random sample of groups is drawn.

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please help! maths test tomorrow and am struggling with revising, if anyone could please explain how to get the answer that woul

masya89 [10]

Answer:

P(roll a number less than 5)= 4/6= 2/3

Step-by-step explanation:

*A dice has 6 faces 1,2,3,4,5,6

*1,3,5 are faces with odd numbers

*2,4,6 are faces with even numbers

*we have four numbers that are less than 5: 1,2,3,4

so i would say the probability to roll a dice with a number less

than 5 is P=4/6=2/3

6 0

2 years ago

Find the explicit formula for the general nth term of the arithmetic sequence described below. Simplify your answer.

Alexandra [31]

$\boxed{a_{n}=-3+8(n-1)}$

<h2>Explanation:</h2>

The explicit formula for the general nth term of the arithmetic sequence is given by:

$a_{n}=a_{1}+d(n-1) \\ \\ \\ Where: \\ \\ a_{n}:nth \ term \\ \\ n:Number \ of \ terms \\ \\ a_{1}:First \ term \\ \\ d:common \ difference$

Here we know that:

$a_{1}=-3 \\ \\ a_{10}=69$

So, our goal is to find the common difference substituting into the formula:

$a_{10}=a_{1}+d(10-1) \\ \\ 69=-3+d(9) \\ \\ Solving \ for \ d: \\ \\ 9d=69+3 \\ \\ 9d=72 \\ \\ d=8$

Finally, we can write the explicit formula as:

$\boxed{a_{n}=-3+8(n-1)}$

<h2>Learn more:</h2>

Geometric series: brainly.com/question/1509142

#LearnWithBrainly

8 0

3 years ago

Please help me with my question

Helen [10]

X is 5
y is 2
you just have to add what the translation was

8 0

3 years ago

Chloe wants to wrap a present in a box for sarah. The top and bottom of the box is 8in by 3in, the sides are both 3in by 2in and

timama [110]

Answer:

92 sq. inches

Step-by-step explanation:

Total paper required = total surface area

Surface area of a cuboid = 2[(l×b) + (l×h) + (b×h)],

Where 'l' is the length, 'b' is the breadth and 'h' is the height

For the box, total surface area = 2[(8×3) + (3×2) + (8×2)]

=2[24 + 6 + 16]

=2[46]

= 92 sq. inches

6 0

2 years ago

Read 2 more answers

What is the line segments between (4,-6) and (-6,-16)?

sergejj [24]

The line segments between (4,-6) and (-6,-16) is 1.

slope = y2 -y1 /x2-x1 = -16+6/-6-4=-10/-10=1

6 0

2 years ago