Question

The marks scored by 20 students on a maths test are: 95, 60, 75, 77, 75, 98, 85, 85, 85, 70, 85, 95, 85, 75, 95, 90, 80, 99, 75, 70.Make the groups with a class size of 5. Find the range of the data. Write the upper limit and lower limit of the second class interval. Write the Lowest frequency.​

Answer 1

Answer:

Here is ur answer

Step-by-step explanation:

marks in increasing order:

60, 70, 70, 75, 75, 75, 75, 77, 80, 85, 85, 85, 85, 85, 95, 95, 95, 98, 99

Median= middle term=85

Answer 2

75 is four times

95 is 3 times

85 is 5 times etc