What is the answer to 4 - (-1)
2 answers:
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Answer:
Step-by-step explanation:
Given
Required
Select equivalent expression
Start by solving the given expression (using a calculator)
Then we solve the given options (using a calculator)
The equivalent expressions are (a) and (e)
Answer:
Second class have higher marks and greater spread.
Step-by-step explanation:
First box plot represents class first. From the first box plot, we get
Second box plot represents class second. From the second box plot, we get
First class has greater minimum value, first quartile of both classes are same, second class has greater median, first class has greater third quartile and first class has greater maximum value. It means second class have higher marks but class first have less variation.
Second class has greater range and greater inter quartile range. It means data of second class has greater spread.
Therefore, second class have higher marks and greater spread.