Question

6. The range of the data 12, 25, 15, 18, 17, 20, 22, 6, 16, 11, 8, 19, 10, 30, 20, 32 is

(A) 10 (B) 15 (C) 18 (D) 26

7. If the mean of five observations x, x+2, x+4, x+6, x+8 is 11, then the value of x is

(A) 5 (B) 6

(C) 7 (D) 8

8. In the class intervals 10-20, 20-30, 30-40 the number 30 is included in

(A) 10-20 (B) 20-30

(C) in both 20-30 and 30-40 (D) 30-40​

Answer 1

Answer:

1. 26
2. 7
3. 30-40

Step-by-step explanation:

2 nd question explaination is in the picture

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