Question

Find the mean and mode of following data:
21, 45, 87, 18, 85, 78, 45, 26, 33, 42, 58, 71 //

Answer 1

• mean/average = sum of all the data/ number of data

• To find the mode, or modal value, it is best to put the numbers in order. Then count how many of each number. A number that appears most often is the mode.

Answer 2

Answer:

Mean = 50.75

Mode = 45

Step-by-step explanation:

Mean = sum of the data ÷ number of data =21+45+87+18+85+78+45+26+33+42+58+71 ÷ 12

$\frac{609}{12} = 50.75$

• Mean = 50.75

Mode = Arrange the data in ascending order and which number is there most times that data is the mode

= 18,21,26,33,42,45,45,58,71,78,87

=45 is there more times

• So, mode =45