To assess the learning outcomes of a Statistic course, 5 students are chosen at random from each of the 30 Statistics classes and asked to take an assessment test. What is the sampling method used here

simple random sampling

Step-by-step explanation:

In statistics, when a subset of individuals known as sample chosen from a population by a random selection of individuals such that the chances of selecting each individual is same, then the sampling method is called simple random sampling method.

Given: To assess the learning outcomes of a Statistic course, 5 students are chosen at random from each of the 30 Statistics classes.

here chances for selectin students is same.

The sampling method used here : " simple random sampling "

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

2x + 8

step-by-step explanation: