Question

calculate mean ,median and mode from the following :
Marks less than. 10 20 30 40 50 60 70 80
No. of students 12 16 27 48 90 106 122 150.​

Answer 1

Answer:

Mean- 71.375

Median- 44

Mode- No Mode

Step-by-step explanation:

To find mean- it's the average of the numbers. first, add up all the numbers. once you have the sum of all the numbers, then divide by how many numbers there are.

1. 12+16+27+48+90+106+122+150 = 571
2. 571 ÷ 8= 71.375

To find median- it's the middle of the numbers. first, put the numbers in order from least to greatest. then, you'll cross off a number from each side until you get the middle number. if there is an even amount of numbers, you will add the two middle numbers and then divide the sum of those two numbers.

1. 12, 16, 27, 48, 90, 106, 122, 150
2. (48+90) ÷ 2 = 44

To find mode- it's the number that is repeated the most. in this case, no numbers are repeated, so there is no mode.