Two cars are 270 miles apart and travel toward each other on the same road. They meet in 3 hours. One car travels 2 mph faster t
1 answer:
Answer:
B.44 mph and 46 mph
Step-by-step explanation:
This question is on relative speed
when cars move towards each other, you add their individual speeds to get their relative speed
Lets have two cars , A and B
Let car A to have an average speed of x m/h towards the right hand side
Let car B to have an average speed of x+2 m/h towards the opposite direction
The distance between the cars is 270 miles
Time of meeting is 3 hours
The relative speed will be x+x+2=2x+2 miles per hour
Apply the formula for time=Distance/speed =D/S
x=44 miles per hour
x+2=44+2=46 miles per hour
solution
44 mph and 46 mph
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Her sample space is also the list of local businesses.
Sampling is a technique used in statistics when researchers choose a representative subset of a larger population and utilize that subset to carry out a study. Probability sampling and non-probability sampling are the two main types of sampling. Selecting the group from whom you will actually gather data for your study is the process of sampling. If you wanted to examine the perspectives of students at your university, for instance, you could interview a sample of 100 students. With the help of sampling, you can test a statistical hypothesis on the features of a population.
The yellow pages are used by the researcher to do research on neighborhood companies. As a result, her sample space also includes a list of nearby companies.
Complete question: A researcher is conducting a study on local businesses. In order to create her sample, she uses the Yellowpages and a dice. She rolls the dice, and, depending on the number rolled, counts that many businesses down in the list to call. What is her sampling frame?
The list of local businesses in the Yellowpages.
All businesses within a radius.
The list of local businesses in the newspaper.
All businesses in the state she is located in.
The list of registered businesses in her area.
To read more about samplings, visit brainly.com/question/13287171
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