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Morgarella [4.7K]
3 years ago
7

What is a cluster sample?

Mathematics
1 answer:
fgiga [73]3 years ago
4 0
This is a sampling technique used when natural groupings are evident in a statistical population. It is often used in marketing research.
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Which of these points, if any, is the midpoint of FJ?
ivanzaharov [21]

The mid-point of FJ is the number right in the middle of FJ. Find the mean of F & J. Add regardless of sign

4 + 6 = 10

10/2 = 5

Add 5 to -4

5 + -4 = 1

H is your midpoint

True. As long as AB and BC are on the same line, AB + BC = AC

hope this helps

4 0
3 years ago
A local pizzeria offers 15 toppings for their pizzas and you can choose any 3 of them for one fixed price. How many different ty
Shtirlitz [24]

Answer:

  455 or 680, depending

Step-by-step explanation:

If we assume the three choices are different, then there are ...

  15C3 = 15·14·13/(3·2·1) = 35·13 = 455

ways to make the pizza.

___

If two or three of the topping choices can be the same, then there are an additional ...

  2(15C2) +15C1 = 2·105 +15 = 225

ways to make the pizza, for a total of ...

  455 + 225 = 680

different types of pizza.

__

There is a factor of 2 attached to the number of choices of 2 toppings, because you can have double anchovies and tomato, or double tomato and anchovies, for example, when your choice of two toppings is anchovies and tomato.

_____

nCk = n!/(k!(n-k)!)

6 0
3 years ago
What is 122/11 equivalent to as a decimal??
kipiarov [429]

divide it two numbers to get 11.090909 which would most likely to be 11.10

3 0
3 years ago
Abdul drove 320 miles using 12 gallons of gas. At this rate, how many gallons of gas would he need to drive 296 miles?
kakasveta [241]
He would need 11.1 gallons of gas if he was/would drive 296 miles.

12 divided by 320 = .0375

.0375 x 296 = 11.1 Gallons of Gas needed to drive the distance.


8 0
3 years ago
Read 2 more answers
Subtract. (4x2+8x−2)−(2x2−4x+3) Enter your answer, in standard form, in the box.
Crazy boy [7]

the answer is 2x2+12z-5 (its also in the picture)

3 0
3 years ago
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