Question

plz write correct answer for brainlist.
plz
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Answer 1

1) what is class size of given data?

⇒  Class size=Upper limit−Lower limit

   class size= 10 -0

                  = 10

2)The range of marks is

The range of a set of data is the difference between the highest and lowest values in the set.

so

⇒15-1

⇒14

3)student who scored between 60-70 marks is

⇒10 students

4)students scored less than 30

⇒1+2+3

⇒6students

5)number of students scored 60 or more

⇒7+2

⇒9students

6)number of students scored 50% or more

∴50% of marks= 50/100*80

                         ⇒40marks

number of students=15+10+7+2

                              ⇒34 students

Answer 2

Answer:

1. 10
2. 14
3. 15
4. 6
5. 9
6. 34

Explanation:

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