Question

Q2. The mid value of a class interval is 42. If the class size is 10,

then the upper and lower boundaries of the class are respectively

(a) 37 & 47 (b) 37.5 & 47.5 (c) 47 & 37 (d) 47.5 & 37.5

Q3. The width of each of the nine classes in a frequency

distribution is 2.5 and the lower class boundary of the lowest

class is 10.6. The upper class boundary of the highest class is

(a) 35.6 (b) 33.1 (c) 30.6 (d) 28.1​

Answer 1

Answer:Q2--A

Q2--d

Step-by-step explanation: