In cluster sampling, researcher divides the population into groups ,which are called clusters. Then random sample of clusters are chosen ,and researcher conduct study to collect data about the population.

Here each bus is considered a cluster ,because busses are selected at random ,this sampling would be an example of cluster type of sampling.

4 0

3 years ago

Starting at a fixed time, each car entering an intersection is observed to see whether it turns left (L), right (R), or goes str

lisov135 [29]

Answer:

x=3, 5, 4, 4, 3

Step-by-step explanation:

Given:

Starting at a fixed time, each car entering an intersection is observed to see whether it turns left (L), right (R), or goes straight ahead (A) such that the experiment terminates as soon as a car is observed to turn left.

X = the number of cars observed

For outcome RRL,

experiment terminates after the third car, so, X = 3

For outcome AARRL,

experiment terminates after the fifth car, so, X = 5

For outcome AARL,

experiment terminates after the fourth car, so, X = 4

For outcome RRAL,

experiment terminates after the fourth car, so, X = 4

For outcome ARL,

experiment terminates after the third car, so, X = 3

6 0

2 years ago

Pls help me with this i will give crown

valkas [14]

Answer:

Step-by-step explanation:

The easiest way to solve this would be to find the difference between the numbers. We can do $-3-(-9)$ to find the difference of $6$ . We can then make sure this is true for the rest of the sequence by adding 6 to each number.

$-9+6=-3$

$-3+6=3$

$3+6=9$

$9+6=15$

Now that we've verified that this is true, we know the answer is C

8 0

3 years ago

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